This thread inspired me to build my own two tier weldless brewstand with strut, and thought I'd share my creation.
I purchased a majority of the components from another local brewer on Craigslist for $500, which was a steal considering I got all three keggles, three propane 23 tip jet burners, two March 809 pumps, and most all of the thermometers.
I took that setup and rebuilt the frame using galvanized strut, rewired and cleaned up the electrical to be GFCI, replaced the 1/2" black gas piping, added whirlpool fittings and all new stainless pickups, all stainless quick connects and silicon tubing, converted the HLT to a HERMS system with 50-ft of 1/2-in 316 SS tubing, a Blichmann Therminator, and countless other SS fittings.
I based a lot of my build off of Kals Electric Brewery. His book was an incredibly valuable resource for my build. Next step is automating the HERMS system with a PID controller setup.
I brewed two 10-gal batches last weekend and loved it!