You might check with the place over in Dalton, GA . . . I think it's called American Foreign??? He usually stocks the same stuff that Mainly Foreign in Chattanooga does, but it's usually a little cheaper. Does anyone have their #?
I think Bug Stuff carries some better quality pans. They are in Penn., but they travel to a lot of events in this area . . . if you order them you might be able to pick them up somewhere like Circle Yer Wagens (Sevierville, TN the first weekend in Oct) and not pay shipping. Anyone have their #?
Probably anybody that can get floor pans can order you some heater channels, but I would be surprised if anyone in this part of the country stocks them. Around here, most folks will just scrap a bug if it needs heater channels. Up north where rusty heater channels are a way of life, it's not uncommon for folks to replace them . . . Bug Stuff probably has them.