I think it's tough to generalize about the thickness of Lefever barrels. I have a 20 ga. DS that weighs just as much as my FE 12 ga. at 6 lb. 4 oz., and I have a 16 ga. DS that weighs less at 6 lb. 2 oz. Then I also have a couple 20 ga. Lefevers that are a little lighter. Two of my 20's have mild pitting and the heaviest is not pitted. I've also seen a few 20 ga. Lefevers that had deeply pitted barrels, or at least appeared that way. It is hard to judge the depth of pitting at a poorly lit gun show, especially when the seller can't take the time to swab or brush the crud out of barrels that look like a sewer pipe.
I'm actually always a little suspect of bright shiny mirror bores in 100+ year old guns unless the overall condition suggests that it was always well cleaned and cared for. But at $800.00 for a 20 ga. E grade, I'd be a probable buyer unless I saw a damn good reason to keep my wallet in my pants. If you don't have a tool to measure barrel wall thickness or bore diameters, it couldn't hurt to ask for a few days to get it measured and return it if it was honed out junk. This thread is a couple days old, so tell us if you were lucky enough for it to still be there when you went back for another look.
