Help me spend some $$$$

Welcome; A couple of question before i spend your money......wisely. Are you going to do the work yourself? Is that a 70 model? The grill looks 70.
If the bolt pattern is small go big and change to front disc brakes and big bolt rear axles with green bearings then you will have an unlimited choice of wheels. Do a Detroit Tru Trac gear drive unit in the rear. I see the rust in the quarters. Have you checked the floors for holes? You don't want to do a Fred and Barney scene. Looks like a good start. Do a legendary set of seat covers and carpet kit. She should start looking good. Check out your motor and if you want bump the compression on the 318 and add some X or J heads with some 2.02 valves in em. Looks like you have an intake and get a 650 carb and this should get you a long ways on your start with money left over if your doing the work yourself. When you get the funds peel off the top and fix the rust as the same for the quarters and then paint.