"...over 2000 rounds..." That's not a lot. The crown can be redone without a lot of fuss or expense.
You may want to have a look at this. Add the W's.
.regcen.com/howa/
Then there's this. .mossbergcollectors.org/
Gunparts has parts for the Mossberg 1500, I'd almost bet that the front sight is the same as that on your rifle. Or you could put aftermarket sights on it.