Thanks to all of you,
I did do a little more research on the situation and found that not only are the frame extensions weaker than the chassis frame but the extensions add leverage and that all the weight you take off the front axle is added to the rear axle on top of the actual weight you hang from the hitch. So adding 400 lbs on the hitch could take 200 lbs off the front and move it to the back so an extra 600 lbs on the rear axle. Which will probably exceed the axle limits. I am beginning to see why this may be unwise.
The unit you pointed me too is in my budget but I am trying to avoid slides. I dont want the hassle of leaks or the extra weight and like the idea of no set up for over nighting but the idea of looking for a shorter unit built on the 450/4500 chassis is a good one.
There is a very long learning curve to this RV stuff and I really want to make sure I get it right the first time because I cant afford a $30,000 mistake.
