If you're not going for a 100pt showroom restore, you have tons of inexpensive replica or compatible parts options.
If you're going for OEM perfection, start emptying your pockets. You have a more common year, so that's good. I have a 1974, which was a one-off year with extra chrome, unique switches, super expensive exhaust, etc.. I blew through $2K in no time, and that was just sprucing things up on a 99% complete bike with all OEM parts. $15 here, $30 there adds up quick...that and the $125 chrome fork ears, $300 exhaust, $150 seat, etc..
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