Think i came up with my own solution.
I'ts like when i can't find something and just as i ask my wife, "have you seen", at that moment i see it.
Placed my dryer on 2x2s and blocked the back with a piece of wood in the bed of my truck.Put a heating pad in the bottom, closed the top and turned on the ceramic heater. The blocks allowed the heat to get underneath and was blocked by the piece of wood in the back.
When i started it was 35 deg in the garage. Within a 1/2 hour the temp in the dryer was upto 70 deg. I think on a 50 deg day 75-80 deg would be no problem.
Heating pad alone only raised it to 40 deg.
Garage has got to be a better place.