This post is from 2016 and immediately went off topic, and OP never posted pics.
Yes, I agree, bathrooms are a huge waste of space for some people, esp i a TC. It all depends on what your needs are. For the guy who spends just seconds a day using the toilet then a portable toilet is ideal and easier to dump. If you always shower outside then an inside shower is just a big air space to haul around for no reason.
I always remove the toilets and use a portable, but I have kept the interior intact for re-sale and just put toilet back in.
I do like to have an inside shower, but it is not necessary and just depends on the size of the camper. SO far this year I have taken all showers outside except for one.