It's likely going to take some time, but....
Looks like the tricky bit is going to be finding the right neck at a not too steep price - I want to keep the overall spend to sub £400 all done, as otherwise I might as well just go out and buy thed CIJ 68RI Strat. Got my eye out at the minute for a deal on a Vintage VS6 Icon in Boulevard black - surprisingly, looking at photos, thougfh that guitar is designed to replicate Blackie (obvs), the fake relicnig on it doesn't look a million miles away (per the rule of "from six feet and without looking for it specifically' ) from the wear patterns on Jimi's. Body on the Vintage is poplar rather than alder, but at least on screen they seem close enough as won't matter... Unless I stumble across something else in the meantime, a used VS6 might end up being a great donor base, with the advantage that the pickups are probably going to be worth considering keeping (or saleable, given the Wilkinson name; I'm liking to look of the GFS 60s pickups).