Thank you for your interest in the 405RW, it is a great floor plan. In regards to the fireplace and different bathroom. We do not have enough room to make the e center with any more depth to accomadate a fireplace in that floor plan. With the opposing slide out rooms, the rooms would not clear the ent. center. because we did try to make it fit in this floor plan already. With the bathroom, we would have to make the coach longer than it is currently which would put the coach over the 400 sq. ft. limit that we are limited to by the RVIA. All great questions and I hope this answers them. I hope we can find a way for you to join the Heartland RV family very soon. Take care, Mike