Lines, Hoses, what fits?
1973 small block and a few years after that have the lower outlet on the passenger side of the radiator and the top closer to the driver's side. I had a 4-core brass radiator made by US Radiator, as I hate the look of aluminum radiators in Mopars unless they are painted black.
My 1968 power steering hose threaded right into my Durango serpentine power steering pump. In fact, I just bought a new replacement hose for $28, because the old hose was starting to look old and had exterior cracking going on. Bolted right on.
I used a narrower battery and cut the battery tray a little to narrow it, so I didn't have to look for a van power steering pump. The battery still has 825 CCA even though it's pretty narrow. It was reportedly designed as an auxiliary battery for a Ford van-sized school bus.