The junkfest season starts here next weekend, and I've been
thinking about searching for a newer, more capable low band rig.
My current rig is an old TS-820S which I am very pleased with.

Steve-

It would appear you have described a TS-830, although I don't know if it has
Six Meters. I can't think of any other Kenwood rig that would meet your
requirements. (Isn't there a TS-870?)

73, Fred, K4DII