My son and I built a rotisserie for my '56 Ford F-100. Used 2 engine stands and built risers to increase the height. It worked great and the frame was very easy to spin. Cost of $200 for steel and a weekend of welding...Love it.
Love all of the welders. I have a HTP mig and have really enjoyed it so far. Just an amateur who loves to play in the shop with the few tools I have acquired. I really do enjoy welding.
Take your car to the local Trade School and ask if they need a practice car for flushing coolant systems.
After they practice flushing it 10 times it is bound to be clean. Just a thought.
I have an old Reznor heater in my shop that came out of a warehouse. Love it.
Heats great and very dependable. It only cost me the time it takes to wrestle it out of the store room and into the pickup.
Is it code to to have 3 layers of shingles? The weight must be incredible on the roof. You may need to replace the roof for structural integrity along with the energy savings. Good luck.