Here is a diagram of my current plan:
It is a pretty simple 2 tier setup. Boil on the left, mash tun keggle on the right. I plan to use a cooler on top to hold sparge water. The frame is 2" 14 gauge A500 mild steel square tube.
My brewday will work as follows:
Heat water in the mash tun, dough in, and start a mash recirc with the pump. The PID (in the center control box) and honeywell valve fires on the burner as needed to keep up temps. While the mash is mashing I'll heat sparge water in the kettle and pump it up into the cooler. I sparge from the cooler as I pump the first runnings from the MLT to the kettle and start the boil. I will cool the wort Jamil style with the pump whirlpooling hot wort around my IC.
Please feel free to point out any flaws before I start this build and waste precious beer money. Thanks!