I bought a used CZ-455 SS Lux last Spring for $500 CDN = ca $350-ish USD. Very lightly used, ca 3-500 rounds, stock in immaculate cond.
If your is in wood stock that could keep the value up ca $4-500, a bit less for synth IMO. 'Pends on the market where you live. As for barrels, you can use any made for 455-457s, availability varies. I'd check GB and CZ-USA.
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Last edited by Fasteddie01; 03/04/23.