[Frost]

While we are discussing overhauls and upgrades how would you handle re-engineing a ship?

For example trying to shoehorn a water propellant engine into the freighter you are trying to militarise in place of its lower thrust hydrogen unit.

My thought would be treat it as any other refit but requiring an engineering roll to prevent serious problems (typically lowered HT) developing. Might there be a better way? Or should I give up on the idea?