Bunk beds and large shower

The corner/triangle showers appear to be roomy but I've had both. The tub models are larger. Get in the shower when you are looking at them. Unless you get into the big high high end models with HUGE showers. get a shower curtain Shower Curtain Extender extender rod. You'll have a shower close to home.

We ordered a KZ Spree 329ik. What sold us on this model was that it has a residential size shower with sliding glass door and seat, kitchen slide, bunk beds with a trundle bed under bottom bunk, outdoor kitchen, and wooden doors for the bunk room and front bed room. It almost feels like an apartment.
http://www.kz-rv.com/spree/329IK.html

Variations on this floorplan are becoming quite popular.



There are lots of brands offering it. Above is Open Range Roamer 310. Other brands are:
Kodiak, Outback, Primetime Lacrosse and Tracer, Jayco Eagle, etc.

Another option is the direct entry bathroom BH like this one. Again, I could find 30 brands offering something like it.

If you have a dually, might want to consider a 5th wheel, since many of them have very open bathroom plans. Although it would be a challenge to find a 5er with bunks, I have seen one or two.

maybe you should be looking at park models