Well, in the pure sense of the definiton, it has been altered and is no longer original. That does detract significantly from it's interest for most military collectors.
On the other hand, many of these were modified by Cogswell & Harrison and a few other firms after the war. They were sold in gun trade publications well into the 1960's. In and of themselves, they represent a post war aftermarket, peculiar variation. I would suppose someone collecting Victory models might want to include one as an example in their collection as a representative piece or just a peculiarity.
However, generally speaking, most of the conversion revolvers are thought to be just shooters and have been long criticized as poor performers foe one reason or another. There have been several threads posted here concerning those reasons. If as you say, your particular revolver shoots very well with your handload, then you've got a decent shooter. But, I seriously doubt anyone would attach any value as a collectable revolver, because of those alterations. Best of luck with it. Shoot it and enjoy it!