Got two (B-5s ?) from late 70's in the basement now. I think they were the immediate predecessor of the Tioga? or maybe they are Tiogas. Bought them from Barney's, anyway.
Wife's is in fair shape yet - mine (second one- done wore out the first one.), is - um - used, but still maybe usable for what little I'll be doing with it for the rest of my life. A few more moose hopefully - but done with the alpine stuff, sheep and goats. That welded up frame is doing nicely......
Last used it to pack a couple caribou out a mile and a half 4 years ago. Been using the ATV's since, in that spot, anyway.
They fit me better anyway.