Do you,or don't you? I mean as in all tech sheets from parts,instuctions,make your own drawings,pictures for re-assembly....That sort of thing.Receipts go in another folder which I will only tally for the insurance people-which I really do not want to know what i've spent. I have done this before,and am doing it now. Sometimes life interupts,and it's difficult to remember where you left off. Glad I have it/made it,cause if I didn't ,I'de be S.O.L! OR- Do just wing it,throw things away,put it on auto pilot and go? It would be interesting to see how you handle your build. Well?