Why not just go straight for the V6? Is it something to do with donor cars/V5's and avoiding the Q plate? If you're picking up a V6 this weekend grab the logbook that's associated with it and use that instead? I can't comment on build manuals but 80 pages sounds like a luxury! It's a pretty straight forward build mechanically and it if's 70% together then I gues all the important bits are already where they belong? Any problems along the way can be answered by the peeps on this site, someone has been there before you and knows the answers!
Recommend you join the club for full site access (if you haven't already done so) and pop down to Stoneleigh in May for the kit car show where you'll me like minded builders and see a few more cars.
Cheers
Guy