"Extend a stay" tank between frame rails
I'm looking at a Winnebago 24k (Mercedes-Benz diesel chaiss). I think the 13 gallon LP tank is between the frame rails. It has remote fill setup about 5' behind the drivers door with what looks to be 2 regulators or electric solenoid (not sure with the covers that are on them) but I think one for the LP gen-set and the other for the rest of the coach.
can anyone help with a setup like this and how extend a stay would be added? I will try to get a pic of the fill port bay with what i think are the regulators tomarro. Should i crawl under to get pics of the tank also?