Got our 17RK in June and really enjoying it. Here's some of the mods we've done so far.
DW made electric tongue jack cover
Puc lights in all cabinets
DW made tire covers from Sunbrella fabric she had
Waterproof toilet paper holder, floor shower mat
Fantastic fan in bath, 3 speed, reversible, thermostatically controlled
PI hardwired EMS
We also have MaxxAir covers on our bath ceiling fan and kitchen ceiling vent,
battery operated recirculating fan & thermometer in fridge, indoor/outdoor thermometer.
Digital thermostat for furnace will be next.