Early 60's D9 had a Pup engine these are worh plenty to the right person, crankshaft from main engine and cylinder head, track rails and sprokets if there;s any meat left on them. Track pads if they're not all busted up..
The rails are what the track pads bolt onto, each link as a pin feel around with yout hand to see if this pin is still round on boh sides, usually you will find that it has a flat spo on the top side which means they've already been turned
If the rear spocket still has a wide surface area across the tooth, you can cut the sproket away from the hub, the next guy that buys it will weld it into place on his machine. You really need to ger some instructions from a shop that does this type of work or it's all going to be scrap.
Final drives will bring in some good money, maybe you even have some good track rollers left on this machine, with out pictures its hard to judge what you have.