Just got back from driving to what used to be one of the best places to buy any sort of metal. Now, the new stuff is limited to mass volume and you have to put your order in at the desk. The original building and surrounding yard is 'surplus' and I did luck out there for a few things. They also still have lots of used machinery, tools, as well as new and surplus supplies. I picked up new US made cutting disks, and old stock light switches and recepticles. Also managed to find 7' section galvanized pipe for a clothespole and fence.
Unfortunately they didn't have the 2 x 2 tubing for the frame connectors in either new or surplus. We wanted .083" and all they had was 14 ga or 1/8. Nothing inbetween. So that will be another trip. :( Should be able to get it up near OMR's place. Speaking of OMR, he's been laying low...