Smokin Ribs- FYI, include Brinkmann in your search, because they are in the lineage of OK Joe's smokers.
This is what was told to me:
When OK Joe sold to Charbroil, and Charbroil reneged on keeping the original factory open, Joe's brother Roger got Brinkmann to come in and reopen the plant w/ the original OK Joe's employees. Later, Brinkmann started moving production overseas and closed the plant. Then Roger started Horizon.
The point is, the "initial" Brinkmanns are essentially OK Joes, all welded and 1/4" and built like tanks.
I found this Cimarron model last year on CL near Hartford for $90.
Good luck in your search!