I think I've looked at the gun you're talking about.
I've come close to buying it a time or two. Nice looking gun I think. It reminded me of a Sears/AYA 20 ga I used to have that was a nice gun and a good shooter.
I think they've got it tagged a little high, but it's been hanging around there for a while. Make 'em an offer. Worst thing they can say is "no."
I haven't found 16 ga shells to be any more expensive than others, at least not "field load" type shells. Wal-Mart might not stock them, but most gun stores do.
I've got a gun on layaway there now. If it's still hanging around when I get that one paid off, I'll have to think about it again. Please buy it so I won't have to.