When it comes to TT you will find that the layouts are almost the same with the various brands. It is the "standard" features and creature comforts that will really set them apart. Look at what is available locally and then go compare. If weight is an issue remember that slides are HEAVY. We have a Keystone Sprinter bunkhouse and our bunkroom has a slide. They made a version of it the previous year with no slide in the bunk room and it was about 800lbs lighter. We had a half ton truck when we bought this TT last year and it got upgraded by July.
