65 Cuda American racing rims

I have a 1965 barracuda 273 not commando and i got Free American racing 200s chevy rims. Front 2 rims are thinner than back 2. The standard bolt pattern is 5 x 4.75
The metric bolt pattern is 5 x 120.7..what do i need to fit these on my A body? Disc brakes? new rear end? New front end? Not sure on what i need its a bone stock cuda... Im dead set not these rims because lets face it i got em for free. Thanks looking forward to your advice. If these won't work what other rims look clean on this car?