This is a word of warning for anyone who is taking on a restoration, under no circumstances keep an ongoing list of the costs involved, it is way too depressing. I kept a sort of mental note for the Spider of rough costs, but actually have kept a list of the main costs involved in the HPE and it is quite sobering looking at the totals. The drip drip over the months did not seem to be that significant, which is why I think you should look at restoring a car like Betas, which will most likely cost more to restore than it will be worth in resale value, as a "hobby"
At the end of the day it is the whole journey which is reason for me to do this, so whilst the end result is the target it is not the be all and end all.
Just a word of warning!
Peter