What would you all do??

No one can say for sure but maybe if you sold some of your non-driving projects it would lighten the burden you feel of having more projects than the energy/desire/garage space you have. See if that restores your interest in the one you've already fixed up. There's no shame in deciding you want out of the old car game, if that's what feels right at this stage in your life. I got out a few years ago because of the expense and I don't regret it. I really enjoyed all the old Mopars I owned but I don't think I want any more.