Since our (my) plans of upgrading to a 40'diesel coach has been diminished due to job insecurity I am just going to continue fixing up what we have for now, and see what happens in a few years. I had ...
Thanks guys for the replies, I wont be spending 2K for this set up or even 1K on this old rig, I think I can make something up with a compressor and a manual valve to dump the air if I want. I need other things on this old coach, so this set up will have to be less exotic.