My G29o project cost me $700 for the barrelled action with mismatched stock and mismatched bands. The correct (mismatched) bolt cost another $300, and I traded for most the other parts (about $500 worth). So, that's $1500 for a bitser.
I watch G29o's whenever they appear on Gunbroker. A nice bolt only mismatch seems between $1500 and $2000. An all matching one is $3000 up.
G24T's seem below $2000 - bolt MM ones I see occasionally for like $1200 tops.