36' Enclosed to Toy Hauler Conversion suggestions/build

I have just started conversion. I've had the trailer for a while now but am looking for ideas on floor layout, plumbing, electrical, and anything else you think is important or wish you had done to yours. I'll post pictures, drawings, diagrams and things as I go. I started a similar thread on RZR forums and I had a few suggestions to post it here too. I have a been a follower of this site for years but just recently became a member.
Please post anything you think is relevant to my build. I want to do it right the first time and I fear that I will find a better way after I finish the build.
Trailer Details:
36' Gooseneck enclosed
7'7" interior height
Tandom 7k axles
It needs to haul my 4 seater 1000 RZR and kids toys which right now are small electric things but eventually will be a couple of dirt bikes.
So far I have insulated the ceiling, added LED lighting, Fan-Tastic vent, 2000i Honda generator on a small slide out, and a 1300W 'room' AC unit.

Current design for the kitchen area, main bed, and small restroom

I'm not sure why this image gets cropped but you can see the whole thing if you zoom out in browser.
Please post anything you think is relevant to my build. I want to do it right the first time and I fear that I will find a better way after I finish the build.
Trailer Details:
36' Gooseneck enclosed
7'7" interior height
Tandom 7k axles
It needs to haul my 4 seater 1000 RZR and kids toys which right now are small electric things but eventually will be a couple of dirt bikes.
So far I have insulated the ceiling, added LED lighting, Fan-Tastic vent, 2000i Honda generator on a small slide out, and a 1300W 'room' AC unit.
Current design for the kitchen area, main bed, and small restroom

I'm not sure why this image gets cropped but you can see the whole thing if you zoom out in browser.