what heater and rad hoses do i need?

If you have a heater, all of them. (LOL)

Seriously, the /6 radiator had both inlet and outlet on the driver's side. The LA V-8s from 1971 on have the outlet the passenger side. To get things to match up, you'll either need to use a radiator to match the engine front cover model year (easiest) or change the front cover and harmonic balancer on the engine.

I had considered getting a tube bent with J-bends at each end to correct the mismatch. I was going to use a section of radiator hose to connect one end to the radiator and run the hose from the water pump to the other end of the tube. It would have been crowded, but would have worked. Ended up getting a great deal on a radiator with the inlet and outlet in the right places.