Thanks so much for all the responses! Very helpful suggestions! Going with paper factory shop manual, and downloading the parts manual for now. (Have to preserve some funds for buying the parts!
Regarding the future, my plan is to first get it the beast safe and reliable (brakes, fluids, spark etc.) so that it runs/drives/stops. Then drive it for a while and see what else the car says it wants. Maybe buff out the original paint to make it a bit more purdy.
Then finally address the things I, the human, think I might need such as handling and a bit more oomph. But we all know how that part goes: Before it's all said and done probably a full rebuild, cam, heads, intake, carb(s?), headers, shocks, bushings, sway bars and so on... Maybe even discs and EFI if I feel really brave. So in other words please be prepared for a bunch of newbie C-body questions down the road!
And in my wildest dreams I want it to be a cool cruiser that won't embarrass me (or especially my long suffering wife). If at all feasible maybe some really laid back local auto crossing and 1/8 just to see the puzzled faces on the other guys! This stuff is supposed to be fun, right?