Has anyone taken the full bed out of a Regal and sucessfully installed a larger bed,(or twins) in the confines of the space provided?

A regular twin bed is 38" wide, I have "twin" beds in my Barth and they are only 33" wide, my Barth is 84" wide interior which would not leave much "walk around room" if you used regular twin beds. There is 18" between my beds.

Hope this helps.

Thanks for the reply Mary. The Regal that I am inquiring about,(is in another state form where I live...back and forth phone chats and pics at this point), has the full bed in the back. This will be to small for my wife and I, and I was hoping that someone else with a Regal had figured out a way to take the full bed out and put two twin's in side-by-side which would be give us 70" to sleep on instead of 54"(full bed).