You're doing great, having the sheet metal off of the 59 frame in 12 hours is pretty fast.
Preparing to clean off the donor frame may take a bit longer, probably more stuff you may want to reuse.
Keeping track of the hours might not be a great idea though... It could be depressing! Those hours add up a lot faster then it looks like they should have. I might suggest that you split the project into several work areas, including areas that can be done without spending much money, and areas that will be costly. Buy the parts you need for the next costly part of the project you need to do, and when the money is short, work on the things that suck up more time. When ever a part of the project id finished, forget about how long it took to get it done, move on to the next area.
Its kind of like keeping track of how much money you are spending. Do it one step at a time, and then forget how much the finished part cost you.
