Today I added a propane level monitoring system and tested it at range on both system monitor and cell phone. Works perfectly.
Also replaced the (n)EverChill minifridge that came with the Passport with a slightly larger minifridge that actually works. Waiting on Keystone to either send me a check or a third minifridge to replace the two nonfunctional (n)EverChill's.
Secured the new fridge far better than it came from the factory.
Added metal corner supports to the bedframe.
Previously I added a TPMS (tested at range, works great), carpet to the lippert stairs, rechargable motion sensing lights in the closet and bar area, a leveling system, an outlet with sealed cover on the kitchen countertop that plugs into the solar inverted outlet in the outdoor kitchen, quick connect for city water hookup, and a door knob bumper for the bedroom door.