Just about every manufacturer makes a 26 foot long bunkhouse model. I would look at some of those. With 2 teenage boys though, you might find the RV bunks to be narrow and short... coffin like. The floorplan listed above has the other option, which includes 2 bunks that are more double size. That gives your boys a little more room to turn around without hitting a wall.
Depending upon your style of camping you might want to look at a slide in the living room to give you more room while everyone is inside.
I prefer Jayco's myself. I went to a lot of RV shows the past 3 years to prepare for my next camper and the overall quality and feel of the Jayco's felt great, as well as value for the money. The Whitehawk is their lightweight travel trailer model.
I like the 28DSBH model. That has the wide bunk beds and the dinette and couch on a slide. Dry tongue weight i3 635, loaded tongue is about 900.
The 25BHS is a little smaller. Still has wider bunk beds but only has a dinette, which is in the slide. Dry tongue of 590, loaded around 780 lbs.
If those numbers are still too high you should consider a hybrid. A Jayco X213 is an expandable with bunks in the back that are wider than normal bunks but not as wide as the models listed above. They have a full size king slide out bed and no bump outs, dry tongue weight of 390, loaded tongue around 660.
There are a LOT of options out there. It all depends on what price you want to pay, what options you want to have, what sacrifices you are willing to make and what available payload you have to carry. Spring is here, try to find an RV show and see what your options are!
