The whole reason for re-barreling or extending and re-lining the stock barrel is to GAIN money from selling otherwise lower cost prohibited guns.
It works well enough that I was more than happy to buy TWO K frame S&W ex-prohibitted revolvers. The K frame guns being my favourite frame size and that being the only avenue to getting anything close to the restricted 4.2" size. And in both cases (and both from the same seller here on CGN) I didn't dilly dally over the $550 asking price and just said "I'll take it".
Now if you're paying a smith to do this work then I suspect the cost over what a prohib gun will bring will quickly make this sort of work prohibitive. But if you can find barrels for a reasonable price then that will make all the difference.
If the replacement barrels are of the same style as the original gun there won't be a cost hit. You'll simply have a whatever model that now has a restricted barrel instead of a prohibited barrel. As such it would be worth the same price as the same gun. If it's a Frankengun thing with a barrel that never came with that model then it'll depend on what it looks and shoots like. Certainly the example of the older PPC competition guns is a perfect example. Owners of those guns almost can't give them away despite the high cost of having them done up originally. I see them sit on the EE for weeks and often never sell. And those that do likely sell for far under the asking price in many cases. Yet, if you can live with the looks of them, they are typically amazing guns to shoot with superb trigger jobs.



























