For easy mode, >>53332688
Because it appears to be a WW1-era Japanese tank from some parallel timeline where tanks fought samurais. Free fuel would help with the upkeep costs, and like historical tanks.
I'd love one of the big airships, but I'd never be able to afford a crew for them.
For medium mode I suppose I'd take >>53332662
Because I'd like a walker. Probably take off the barbed wire and blades and guns and such, though. Not very 'rural England', that, really.
Hard mode: I dunno; maybe either >>53333507
They seem to be the most advanced, so I can turn whichever one over to the authorities and they might be able to reverse engineer it for useful tech.
Also, feel free to ignore the 'above this post' bit.