[pup67vargr]

Here is a trial system for cargo. There is probably one in Far Trader, come to think of it, but for now, let's give my algorithm a shot and see what it gives us:

For finding cargo for the TSS Hiawatha to take from Prometheus onward, on their trip to Ninkhur Sagga [2222], the required throw will be 14-. Post that throw in the IC. On a success, make a second throw of 5d. Ten times that result will be the tonnage of the cargo. If the Hiawatha does not have sufficient space to take all of the cargo, then an additional throw of 12- will be required for the shipper to permit you to take less than the total shipment.

If there is additional cargo, it will most likely be bound for Agidda [1824], the next garden world along your route, but not necessarily. Make another throw. On a 8+ it is going to Agidda [1824]. On 5-7 it's going to Nusku [1822]. On 4- it's going to Ishimshulgi [2021]. Post this destination throw in the IC as well.

So up to four throws should be posted:
1. 14- for Cargo availability [if this isn't made, no other throws are necessary]
2. 5d [X10 tons] for size of cargo
3. 12- for permission to take less than a total shipment [this could also be a deal breaker if the cargo is larger than the space available on the Hiawatha]

and finally,
4. 3d for destination [ 8+ Agidda, 5-7 Nusku, 4- Ishimshulgi]