I "found" a cylindrical aluminum tank,that I sold to a friend,for just such a purpose. It was about 12-14" dia. X 3'long.He used the existing plywood mounting hdwe.,to fabricate brackets for the frame-rails.He used the existing filler-tube,without having to fabricate a different one. Tank had a "sight-glass" type of gauge,so he was contented to leave as-is. I would prefer to have a "Dash" gauge that I could keep an eye on,and I don't think it would be to difficult to make one,as long as tank has opening(/w/plate),big enough to accomodate sending-unit. Since these tanks are in virtually every medium to large-size camper,there should be a good supply available,at a cheap,(if not give-away),price! Here in our "neck-of the woods",we're parting 3-5,every Summer. You should be able to find one LOCALLY,which boils down to NO SHIPPING CHARGES!!Paid $20.00 for mine,sold it for same $,to a fellow "Bolter",and we were both HAPPY HAPPY HAPPY!! Hope this helps!
