I tow a 2014 Open Range 367BHS with a 2015 Ram 2500 SB Cummins, it is a little longer than what you are thinking about. But as far as floor plans its perfect. I was looking at preciously exactly what you are. We ended up with this and love it. They do not make that model anymore, have switched to the mid bunk floor plan. But there should be 16's and some early build 17's to choose from. Dont let the weight police scare you. I towed it close to 8k miles this summer all with Ram 2500's with a short bed, one gas, one diesel. It towed great.