Cadillac 472 engine and 400 HT trans

The engine has a crane cam (that’s all I know about the cam) the engine runs strong and the trans shifts fine (the trans has a 3500 stall speed)
This motor and trans are in a 1971 El Camino at this time and I am going to take the car back to all Chevy hence the reason for selling.
I don’t know how many miles on the motor or trans however I don’t think more then 30,000 or 40,000. I wish I knew more but I bought the car this way and the owner or builder has passed.
I would like to get $1500.00 for both but will entertain offers.