Took a look at your floor plan, it has four slides, the front slides should not pose a problem you just have to be careful when going to bathroom because of the uneven slide floor.
The bunk bed slide it would seem that you would have to move sideways to access the bathroom.
Most hall passage ways are 2' wide normally my tightest with slide closed has a 18" space which you can get thru sideways. This would be likely near your bunk beds.
I like your layout on the 3943 would get it if we still had the kids, who gets the high bunk they wanted to know, we pulled straws each trip.
Good luck in your quest.