if it was made well i doubt be any problems, and that also means the door is to be made sure its NOT a snug fit to the frame - as that where would the problems starts.
that's too high...the pivot point has to be in the middle , BUT, you can engineer a new set of 'slide down point mechanism to achieve hat desired lower point to move the 'bed' down closer to the floor... then roll out the mattress and rugs on top..