I respect that you want to save, restore your car, just thought I'd give you an option, or, show you whats out there.
I'm betting by the time it's all said and done, the money will be a wash. Pay now, or pay over time.
Sometimes money up front is not what you want to do, and I get that, mine is going to sit for a year or 2 because I simply don't want to plunk out cash right now.
Spending money on these older cars... It's a hard enough decision to make to when you have the "cash", more so if you need to finance.
Sometimes, such as in your case, you just want to make it yours through blood sweat and tears dagnabbit.
Good luck with your build, looking forward to watching the progress.