I built this rig during the last year. It works really well but I'm thinking about redesigning it and building another single tier rig this winter.
This Beauty (dubbed The Defibrewlator) is built from 1.5" stainless tubing with stainless splash/heat shields on the front side and 5" locking casters. The system uses three keggles and a RIMS tube controlled by an Auber PID. Most of the rig is hard plumbed with 1/2" and 1" tubing using triclamp fittings and two center inlet stainless Chugger pumps. There is a plate chiller on the outlet of the BK that gets 10 gal down to pitching temps in about 10 minutes. (I think it's the 30plate model from keg cowboy, can't remember exactly).
A shelf is attached under the control box to hold a 20lb propane tank(not included),Ii think there is room for a 40lb tank if you have one. A propane manifold is mounted nearby with on/off ball valves and adjustible regulators for tight flame control. HLT and BK have 10" Propane Banjo burners, MLT has a 6" burner if want to direct fire or step mash.
HLT and MLT are both plumbed to a chugger pump via a 3way valve to switch easily from dough-in to mash recirculating and back to sparge. The MLT drains into the BK by gravity so you can fly sparge while you pump your sparge water from HLT to the top of your MLT. All vessels have triclamp mounted dip tubes with very little residual fluid to reduce equipment losses in your brews. MLT and BK have stainless false bottom as well. There is a 1.5" triclamp temperature probe mount on each keggle and site glass on HLT and BK.
There is copper water plumbing with in-line charcoal filter and two valves to fill HLT and/or feed water to plate chiller without changing hoses.
This pic doesn't show the control box which is mounted on the arm. There is an e-stop, main power switch, switches for each pump and a forth switch for the RIMS tube wired through Pump 1 to ensure liquid flows during heating. Switches are LED push button. Everything runs off 120V. Comes with 1500W VLD heating element and a RTD temp probe.
I'm asking $4500 for the entire rig. Right now I'm NOT looking to part it out because I'd likely just cannibalize most of the good stuff if I couldn't sell it whole. I'd like to sell in this area to avoid shipping hassles (I'm in Greensboro, NC), but I'd be willing to look into shipping costs if someone wants to pay a few hundred dollars extra.
Feel free to ask questions and I'd be glad to take any other up close pics if you want to see. The rig is currently disassembled in the basement but I can put it back together pretty easily.