A proper plan?!

[alga]

I agree with PorkChop, there are always logical dependencies. Also, there's a lot of ways to do it, lots of jobs that are fairly independent. E.g. some people start by stripping a donor, others build a chassis first. You can sort the wiring before plumbing the cooling, or you could get the engine to run on 4 wires, do the cooling, and wire up lighting later. Really lots of independent jobs.

And I agree that the book is very vague on many things, but this forum plugs that hole very well. Any aspect of the build you can think of most likely will have been discussed once or twice during the five years this forum has been running. Do some search digging, too, too often the best nuggets of advice are hidden in unrelated threads.