I'll go a different direction.
I found this via word of mouth. 88k miles, one repaint. Original interior & top, engine bay also.
A35 towing package so it has some HD suspension goodies.
383-2 barrel, plenty of pep, sucks gas but a joy to drive & very comfortable.
It came with the body color steelies, so they are on it now.
I sold the chrome wheels pictured for almost enough to pay for Plymouth Division hubcaps, a NOS cone style sure-grip unit & having it installed.
No other modifications needed or desired.
So with your 12 K budget in mind that would have left me 8K for gas, upkeep & insurance. :)
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