Some great info there, thanks guys.
I'm starting to realize that each project is a personal journey, and somewhat dependent on circumstances.
I'm doing the parts collection prior to strip down over about 6 months; at least all the stuff I know I want replaced (bearings/gaskets/seals & items I know are stuffed). I'm not going to buy cosmetics (levers/grips/graphics etc) until final rebuild when I've already paid for everything mechanically required. While I'm saving $ and searching parts I'll be cleaning, polishing and restoring parts (like restoring plastics), that are time consuming and I want done so they don't slow down the final stage. I couldn't think of anything worse that delaying the rebuild a week polishing fork lowers when they could have been done weeks before whilst saving for that Wiseco piston kit.