Used 360 price

I am looking into buying an used 360 for my 1965 Dodge Dart project.Says it does turn over and he does keep it up sealed up in his shed.My fiancée Brent's cousin Jake has it and said it is mine for a good price.Said it did run very good before it was pulled out of a 1979 Dodge 3/4 ton truck.It is going to replace a worn out 273 that smokes a lot.I do know that the torque converter has to be changed as well because the 360 torque converter has a counter weight on it.My dart does have the 727 automatic.What is good price for this 360?I plan on tearing it down anyway.
(2) 360 "center sump" pans, an 876 which the sump starts ~2" back from a vertical plumb line straight down from the very front of the front pan lip and the 392 which is ~4". Both sumps are ~8" long. measure how much clearance the same dimentions are on the 273 pan & the clearance to the front of the Kmember to see if you need the 392 or if either will work. They each take a different pickup from each other & if one of em matches the 273 sump dimentions then highly likely the 273 pickup would work if you are going to strip it. You can use the 273 iron pump on the 360 t cover if you are keeping the same radiator otherwise the alum pump is much thicker & pulley adjustments will be needed (not fun). As said take care of the balance and plug the AIR holes in the heads & likely will need a slight mtr mt adjustment on the dr side (spacers/shims) cuz the block ears on the blocks are spaced slightly different between the 273 and the 360.