Desperately need rims on stock

ok so i test fitted the front and couldnt get the rim on. It wasnt a backspacing problem it just didnt fit because the center bore wasnt wide enough. I noticed that there wasnt enough room anyway so im gonna sell those and get different rims. i didnt do enough research before i bought them and so its just a learning experience lol Does anyone know any stock vehicle rims that for sure fit a 1976 duster with stock suspension? they need to be cheap so im craigslisting them. Thanks guys youre all a lot of help