1969 valiant with 13 inch wheels

My son also has a 68 valiant/6 3 on the tree and we rebuilt complete front end to stock and also keeping the 71/4 rear for now just rebuild it. Me as a young adult have done many things to my cars wish i could go back. My son is 11 and ill let him make those decisions when and if he wants to change all the extras when he’s much older. IMO fix what u have before u spend a lot of money.