I have a ALFA Ideal 2002 38 RTLS and I want to add a generator to my truck and do not know what size I need to run the two heat pump system I have. I would also like to put a roof AC in the bed room for just running that when we cant get 50 amp service. any body had any experience with that? My bedroom stays warm when it is real hot and I would like to be able to just cool it with 30 amp or less power when we can't get the 50 amp service. I want to put a generator in my truck to service the RV and trailer when I dont have power available. Any one have experience with that.