Parts for those aren't really drop in so even if you had a spare the gun would probably need to be tuned and fitted. Bolts are very hard and I have never seen one fail.
I’ve made or fixed parts for several hundred transferable or post sample 10/22’s. Most of them I do I make open bolt with how easy and reliable they are.
Baseline I sold my transit chest alone for 2k, very basic kits no receiver pieces are 2.5-3k, then whatever else is in the chest. So at a very minimum you've got 5k+ in stuff if it wasn't all matched and in a crate together.
Very nice factory Colt M16A1 Carbine on an e form 3.
$42,000 shipped
Can provide any additional photos and happy to test fire the firearm before shipping.
Will take trades on other firearms or do short term layaway.