Forgive me if these questions are too basic, but I've got 3 Wapi's on the way, and if I find that I enjoy straight shaving, honing, etc., I can imagine I might want to try putting new scales on one of them and maybe restoring some eBay razors.

1. How do you remove pins? Do you just knock them out or drill them out? Can you reuse a pin?
2. If you are making wooden scales, do you basically shape them by hand (dremel or drum sander) according to the size and shape of the scales you are replacing?
3. Would most any 5/8 old scales be suitable to replace scales on a 5/8 Wapi?
4. What are some sources for parts, both new and old?