Dilemma on a Duster - 71 or 74

I know where there's a 74 Duster for sale right now with an E58 360 hp motor big bolt disc brakes, rebuilt 727(column shift) and an 8 3/4(big bolt) in it for $1000, owner would probably take $800.00 or $900.00 for it. It's just sitting in a field, engine runs great but cold use a carb, Needs suspension rebuilt and paint(primer grey). It also has descent black interior other than the headliner and dash pad. I'm hoping it's still there in a few weeks when I can come up with the cash. It's my buddies car that I put together out of an engineless 6 cylinder body that we bought for $300.00