It makes sense. You can apply the rent money to your own place.
I still really like the design of it. After visiting many boarding stables I like the individual tack rooms located at each stall a lot... it might be a big extra cost building at first construction, but it keeps the barn nice if every horse's blankets and tack boxes aren't cluttering the aisles. Each stall would have a run where they could come and go, and each divider between stalls could be removed for foaling. I picture the arena space with just rails around it so it looks open all the way across.
Back and side elevations, barn layout
Entrance:
Any of you with boarding barn experience, please feel free to make ergonomic suggestions. Dream barns are still open for re-design!