Stealth slideouts (TC usable with the slideout IN)?

I am 210lb and have no problem to get into my camper with slide in.
The narrow point is between corner of slide and countertop but other than gaining floor space for walking, the camper is fully usable.
I kept the slide in in freezing temperature for better heat efficiency.
On other hand was checking big trailer, what was park model. Slide switch was inside and I had to hyperventilate for a moment becouse the passage between the walls require holding my breath and squeezing my belly inch by inch.