I would not say a replacement HK match barrel is a super easy fix unless $500 plus is easy for you. An aftermarket barrel, sure, but not an HK, and that is IF you can find one. The guy must be an abortionist to have done that to the pistol. The old style engraved weight is garbage now so far I would be concerned. He ruined an easily $300 match weight, a $500 barrel, and made a $2K pistol worth, well, less than a standard USP IMO.
What an idiot.