So here's my idea.
1. Buy stock stainless 304 or 316 tubing with wall thickness around .75 to 1.0mm depending on the tube.
2. Miter with my grizzly tube notcher.
3. Fillet braze with nickel silver or 45% silver and MAPP gas.
Is this a horrible idea? I was also thinking about putting in additional bracing at the joints. TT to HT, HT to DT, DT to ST, and ST to TT. Maybe also ST to chain stays and seat stays as well.
This would be a super heavy bike and probably won't be pretty, but I don't really care about the weight or the aesthetic. Just thinking it might be a fun quirky bike that won't kill me and won't cost me an arm and a leg.