Mandy and I were looking at that coach online just the other day, it's definately a great layout. We love our coach but I would love to have a rear living room instead of the rear kitchen. I wish that had been for sale when we bought ours. The pickings were slim on Sunline fivers when we were looking and ours fit the bill nicely, but........I'm never satisfied.

Guess thats why in 28 years old and have had five campers so far. If it sits long enough I may just get that itch again.
As to the towing aspect. They (the fivers) are extremely heavy trailers. When you take a look at the frame you can definately see why. The frame under my Sunline makes the frames under a lot of other fivers look like toothpicks. When we bought the coach I had a 2001 2500 Ram with 3:55 rears. I towed the coach home the 550 miles through the White Mountains and the Pocono Mountains with no trouble holding a very steady 60 mph the whole way in July with the AC on full blast. The truck never struggled with the heft of the coach, either pulling or stopping. Before I left I installed an aftermarket tranny temp guage in the truck to monitor it's proformance. The guage never went over 185-190 degrees until we sat on the Mass Pike in traffic for 2 hours. Even then it never got close to approaching any temp that would alarm anybody. I was assured by more than a few people that the coach was definately in the capability range of my 3/4 ton diesel. The only reason I'm not still driving it was I wanted a long bed truck to haul more stuff.
If I'm not mistaken delcon88 is towing his 37' fiver with a 3/4 ton truck also.
JohnB is correct I had camping stuff in my coach. If you look in the basement of my rig you will find just about everything you can imagine. Horseshoes, tiki torches, about 6 chairs, doggie playpen, fans, grill, turkey fryer, extra propane bottle, totes full of electrical cords, extra water hoses, pinbox stabilizing jack, rain gear, tools, axes, hatchets, lights, totes full of misc. needs, etc...All that weight is basically adding directly to your total pin weight. So with a little discretion (which I seem to lack

) you could easily subtract a few hundred pounds from my pin weight by more evenly distributing the stuff around other storage points in the coach.
Good luck, they are most certainly a great coach.
Lowell