Idea: If you utilized a batch sparge process, would it be concieveable to run a (2) kettle system with a pump? Youd have a HLT/Boil kettle and a MLT. Both kettles direct fired, controlled by ASCO valves and pilots and Love controllers.
#1. Heat strike water in the MLT, add grains, begin a slow recirculation during the mash. Use the Love controllers to adjust temp and maintain temp.
#2. During the mash, heat the remainder of the required water for your batch sparge to 170F.
#3. At the end of the mashout (direct fired), pump the water from the HLT/Boil kettle into the MLT, then begin the batch sparge.
#4. Collect the runnings in the HLT/Boil kettle and begin the boil.
Fewer tanks, less space, less complication, batch sparge, automation... could really make for a quick and easy brew day. Pump and hoses would be swapped with QDs