UPDATE =
Took the plunge and bought a mwb (20ft) high top transit 56 plate, ex network rail crew cab, 100k miles, for £6k, spent about £2k on the engine and fitting it out, its split in half with a thick ply line, so all the wfp stuff in back, and bed, microwave, cooker, heater, sink, kettle, toaster, etc in middle. (most of that was already fitted professionally too)
Ive lost about 6 jobs because of access, but i'm glad i did it, great for mountain biking and camping in the summer, just need to insulate it properly when i get the chance.
also sold the scudo for £2800.