You could probably buy a brand new 883 for what it would cost to get that bike running and roadworthy.

 

that periscope gas cap is worth a grand, plus the welds on the seat to the frame looks like the weld I made with my very first rod...
Had a 70xlch in 72 and really wouldn't want another, specially in that shape...

 

The asking price is high & expect he will end up selling for less, but that "Amen Savior" or "Santee Softail" frame has special value.