Even complete Remington bolts which won't have the cocking piece location issue are often around $300 if you need one in a hurry. As mentioned above there is a good chance a random bolt will headspace but also a decent chance you won't be able to get the safety on bc of how your trigger will interact with the firing pin/cocking piece; a gunsmith can fix that but you're just adding more money.
You'll often see altered/molested/non-collectible but complete pre-64s on Gunbroker for $800 and I bought one off a member here last year for about that price. You might end up spending around that just to get a bolt and get it working.
Yeah, its really a shame the op can't get the bolt from the family members he bought the rifle from. I've bought good pre 64's for less than $500.00, there's no way in hell I'm going to spend that much for a bolt and smith work to get it working sufficiently. I would have walked away from that deal, honestly...
