It was a cheep econo to the rem 700 back in the day like the win 670 and the savage 340
My gunsmith has built 2 custom rigs for guys on them and they wanted the rem 78 sportsman taken off the reciever , just a reciever with the ser, # only .
To me i have no clue if i could find one at a bargin you would bet i would buy it its the same and is a 700 all the parts swap its just a entree set-up in the day