Dropped floor??

I am new to the site...spending alot of time checking out all the ideas!!
I used to own a 8' Okanagon slide in truck camper...and now own a commercial travel trailer...and am starting to lean towards a DYI build for a camper rig of my own design.
That old camper was 12.5 feet overall and I always thought the same layout would work great in a pull behind trailer, expecially if you could drop the floor somehow to maintain headroom while parked?? It would also allow you to have more headroom over the bed.
Has anyone ever toyed with this idea? I have seen pop tops, slide ups and outs...
I used to own a 8' Okanagon slide in truck camper...and now own a commercial travel trailer...and am starting to lean towards a DYI build for a camper rig of my own design.
That old camper was 12.5 feet overall and I always thought the same layout would work great in a pull behind trailer, expecially if you could drop the floor somehow to maintain headroom while parked?? It would also allow you to have more headroom over the bed.
Has anyone ever toyed with this idea? I have seen pop tops, slide ups and outs...