imported post
There are a number of decent options for a folding stock. (Remington won't normally sell them to non government workers for some idiotic reason) One of the best ones for adaptability to heavy clothing, I think, is the ATI T6 folder.
I personally have an ATI top folder, but the length of pull was 14.5", and I think the max for someone under 6-3 should be 13", at least on a fighting shotgun. So I cut a piece out of the stock to shorten it, and bridged the gap with a piece of oak. Effective, but complicated, which is why I suggest the folding T6, unless youre big framed, or on a budget and patient and good with tools.
As far as new barrels, Cabelas has them, although perhaps for more of a price than they are worth.
Unless you need the barrel you have now for a specific application, or unless it's a really high quality slug barrel, or a shorter barrel that takes choke tubes, I suggest cutting it.
Chopping a barrel is exceptionally easy. You just measure it starting from the bolt face racked forward on an empty chamber, mark it where you want, and use a hack saw, reciprocating saw, or maybe a chop saw to cut it. (if using a hack saw, DO NOT try to cheat by snapping it, because the barrel could tear) Smooth it out with a belt sander, and maybe a rounded file to smooth the inner burrs. The only slightly hard part is putting a sight on it,. That step is easiest with a vent rib barrel, but there are a lot of other options if it's a plain barrel. And with any setup, a smith would probably put a sight on it for 15-25 bucks, which is a hell of a lot cheaper than a new barrel.