I would take plenty of pictures and keep them filed in easy to find folders. You will need these for reference as to wire routing, brake lines, fuel lines, dash mounting, etc. Also, when dismantling certain items, it is good to take pictures showing the steps and positions of parts to assist in reassembly.
Making lists as you go is also a big help. Parts missing, damaged, etc.
I usually put nuts, bolts, clips, etc. in zip lock bags with a note inserted telling me what they are. i.e. fender bolts, door hinge bolts, linkages and so forth. Another list would be which box you have certain parts in. I label them Box #1, #2 etc. and then keep a note book that lists each box and the parts bags they contain.
These restorations can take a long time, and I have found my memory isn't big enough to contain all the information involved in reassembling.
My current project is a 1968 Plymouth GTX 440. Unfortunately someone else had dismantled most of it so I don't have complete records like I did on my signature car restoration.
