Installed an Onan 5500 EVAP into our pinnacle last month. It had the generator prep package and was quite easy to install. Hardest part was getting it into the compartment. Pretty tight. Built a stack of cribbing and put it on casters then rolled it up to the compartment and slid it off. Fit right in and all of the holes were pre drilled so bolt onion was easy. Had to supply a 12 volt negative ground cable and the exhaust pipe all the rest was provided in the prep package less wire connectors and some clamps for the gas lines.
And welcome to the forum
Craig & Terry in Tennessee
2013 Pinnacle 36 KPTS, Voyager Rear View Camera
2012 F350 CC LB King Ranch, 6.7L TD, Ford 25K hitch, TM TPMS, Diesel Site Coolant Filtration System