I'd suggest 2 extra lights on the underside of the cabinet - right above the sink and right above the stove top. I love having lots of light
when doing dishes or cooking - esp. at night or on a very cloudy darker day. The flourescent light
they have there only works if you have AC whereas the extra lights work fine off the battery
I had them install 2 extra AC outlets - one nearest the rear wall as high as possible in the bench - same side as the inverter. That way if you have a laptop or something you don't have to string the AC cord back over to the only outlet near the sink - makes it easier to get in and out of the table. You just reach down by your knee and plug it in.
I also use that outlet when I add the small 5000 btu window AC every once in a great awhile to the rear sliding window (again - you don't need to run a cord across the table or bed then and trip up in the middle of the night getting up to the bathroom.
Suggest you upgrade the battery
to a group 27 size right away; default is 24 from factory - fits in the same battery
box no problem.
I had them skip rivet mounting the stinky slinky tube on the front of the trailer. I didn't like the look and it yellows rapidly anyway. I simply store the tube inside a charcoal bricket bin - or you could add a holder on the back bumper.
Enjoy the new camper! Picking it up in October up at the factory is beautful. There is a nice CCC camp ground about 20 minutes south of the factory that we spent the first night at for a shake down so we could return quickly if needed the next morning.