After a while, I've been thinking about the Reaper Generator and will try it in some of Conqueorers 'open trailers'. That looks to fit and would be easy to transport with the Faraway gun, being just a trailer, you might get away with some sort of truck for that. Just mulling outloud atm; working up a new purchase from Conqueorer for some of those trailers. A 3GBP ec, they'll be popular in my forces.
I've been working on the 'Dropship' dirigible lately, my full size landing craft for airborne troops. Two of the generators are going to be the basis for my airships engines. Safer design than have hot ash smoke coming up from the steamengines I'd think. Although I've seen some rather dramatic illustrations of late of designs where the heated smoke is used to keep the ballon above it in hotair! Ref: The Manual of Aeronautics from Osprey book.