You do realize that the slides may need to be out for you to be able to use the camper, right?
Lance has the brochures from their past models all online, so you may be able to find what they once made that suits your wants/needs. Maybe try to access some of the campers that you like and see/feel what they are like and imagine camping in them. No one here knows what you need and how exactly you will use the camper. So in the end only you can make an informed decision.
Still, even if it has no slides at all, maybe have a quick look at the Northstar STC. It has the side entrance.
