upgrade to walk around bed

Take a look at the Lance 1985. Small trailer, great floor plan.

That was one of the things I didn't like about my last FW. The bed was up against the wall and you had to get on the bed to make it. That usually meant getting on the bed with two or three dogs and trying to get the wrinkles out.

What do you mean 'upgrade?' Modifying something that didn't have a walk around bed?

A 7.5 wide can be built with a walk around, the room at the sides is a little less than with 8 foot wide. What more often determines whether or not there is a walkaround is whether the TT is long enough, with everything else in the floorplan, for a dedicated bedroom. I've seen this in TTs as small as 21-foot, when the only other space is a dinette across the aisle from a small kitcthen. Gulstream did this on an Amerilite, I think the model was something like 21MB; a couple in our RV club has one, they tow with a V6 Highlander.

Larger sizes, bedroom can be front or rear, there are other spaces. I've seen 7.5 wide lines go to about 26 foot long, some with small slideouts, like one for a sofa. Much larger, or models with large slideouts or multiple slideouts, you will more often find built 8 foot width, whatever the bedroom arrangements.

For 7.5 width you'll be looking at entry level lines, ultralights, or a few specialty lines like molded fiberglass trailers. Otherwise, 8' wide is the norm in towables and wider yet in motorized RVs. Some TT lines that used to be built consistently to 84" or 90" width are now including models built to the full 8 feet, so you have to be particular checking specifications, if full width is a problem for you.