It looks like he wants all his money back for his modifications. I personally don't think what he did is worth all the extra money. I don't think he added much to the defensive capabilities and absolutely ruined any collectible value. He does look like he's adding easily $100 or more in ammo and holster if you add value to stuff like that. I normally don't add value to accessories, but with ammo being as expensive as it is... I would feel ok (just barely) for the package at $450 TO $500 for the ammo, holster and the 'modified' 640.