Techno-Fantasy on real novel series

[Walrus]

Hello. I'm working on formalization with GURPS of "Tajnyj Gorod" ("The Secret City") universe by V. Panov (original books are available only in Russian - see www.vadimpanov.ru or www.t-grad.com for details).

This universe is rather similar to "Dozory" ("Watches") universe of S. Lukyanenko, known in world through "Night Watch" Movie, but without moral conceptions, with "lower" fantasy and deep magic-tech cross-overing.

There are following concepts in the world:
1. It is Ritual Magic system that governs the magic in the world.
2. The most of magical energy is produced by few mighty artifacts called "Sources". Mages have ER, which may be replenished only form such Source (usually not directly but via special "magical accumulators") which are produced by the race controlling the Source. And such energy is only valid only for few other races, thus they are dependent on their seniors. They cannot use "ordinary" FP for spell casting however.
3. The main action is in real world and present time but with slightly alternative history (more alternative in past explaining the origin of magical races including human magic traditions). Magic is concealed as in Illuminated Fantasy with a little of Absurdest Fantasy (Fantasy, 13).

So, there are plenty of questions that might arise while modeling. Here are some of them. I seek ideas of how to formalize these concepts.

1. Enchantment is very wide spread in this universe. Actually, nearly any spell may be "inserted" into artifact which may be used even by non-mages and this is usually stabler and simpler than ordinary use of such spell.
E.g. the "Portal" spell creates a standard fantasy portal to target location with some parameters. But it is hard to caster to adjust parametres, especially if he doesn't see the target location or there are no "beacons" or "anchors" there.
However, the "Door" artifact is rather simple in use and can be previously adjusted to make a portal to specified location. Roughly, it modifies limitation for spell-like advantage "Warp" from "Takes Extra Time" to "Preparation Required".
Some variants of such artifact are more simpler.
"Technical hole" creates a portal in any kind of wall or something similar (like normal door or glass), automatically measuring the thickness of such barrier and creating a portal with "enters" on both sides of the wall. The user can rather freely work through such a hole with one arm or somehow with two arms.
"The Hole of Life" creates a direct portal for up to two persons to admission room of the "Central Hospital" of the action location (the very "Secret City") from any of its place.

More precisely, "standard" artifact consists of magical accumulator, "directing" device, which transmute the energy from "raw" kind to magical effect, and "controls", which govern the parameters of the spell and the "on-off" switcher. It doesn't matter how these components are manufactured "industrially" exactly, but it seems that they may be easily bought like radio components IRL or even produced in house lab (except energy in accumulators which still must be from "The Source").
Some artifacts may have enhancements or variants like built-in rechargeable accumulators vs. changeable accumulators, or "sealed" accumulators which can't be drained by magic-draining effects or even "sealed" artifacts which can't be detected before using.

2. Moreover, the combat magic is comparably powerful to present-time (TL8) combat devices. The exception may be medicine which seems like magic-based TL 8+1 or 7+2 but only in dispensary or hospital conditions - "field" magical medicine seems no more potent than TL8. Also spying and detecting magical devices are comparable to later TL8 or even earlier TL9 devices. And some spells like information, search or portal spells seems like super-science.

And finally some more pragmatic questions.

3. How can one create an ability which works through a kiss and may be used in combat? For example there is an ability "Mermaid's Kiss" - sorceress kisses the subject and he calms down in euphoria and answers sincerely to any her questions.

My decision.

Mermaid's Kiss:

Affliction 10 (Ecstasy +100%, Secondary Euphoria +6%;
Accessibility, only while kissing - treat as bite to face maneuver with additional -1 to hit modifier -20%, Only on men (half power on women) -10%, Requires two successive attacks, not ready maneuvers -10%; All-Out -25%; Based on Will +20%; Blood agent -40%; Blood Agent, reversed, -40%; Extended Duration 10x +40%; Limited Use, 4 per day, -20%; Melee attack C, cannot parry, -35%; Takes Extra Time 1 -10%) [56]
Affliction 4 (IQ penalty 3, +30%; Based on Will, +20%; Follow-up: Mermaid's Kiss -65%) [34]
Mind Probe (Accessibility, only on victims of Mermaid's Kiss -65%, Must converse with subject, -20%) [4]
Affliction 1 (Moderate Pain +20%; Follow-up: Mermaid's Kiss -65%; Onset: 4 hours or after sleep, -20%) [4]
Total: [98]

Blood agent and Blood agent, reversed, represent deep kiss, so Accessibility only represents required maneuver and fact, that the sorceress need 2-seconds long kiss, not one second preparation and kiss then.

Mind Probe accessibility is based on limitations for "Follow-up": Melee Attack, Takes Extra Time, Limited Use. Should I assume "Link" instead? Also it uses "Compel Truth" (from Powers) Accessibility for conversation.

P.S. Sorry for some Runglish, I write and speak in English very rare, usually only read or listen.