First of all, Thank you. The only problem with Class 5/6 or an MDT as we usually refer to them is they are most times under-powered and over-priced. We looked at a Sportchassis M2, cost of over $100k, new and used still about 80k. Ours was far less at 34K. It has plenty of power, and the view and safety are untouched by any other class truck. DW was not a fan when we first purchased, but now she will not travel any other way. No air ride seats in a Chevy.
There are two yearly rallies about these trucks depending on where you live in the US and you do not have to own one to attend. We have been there the last few years and with 3 Disney trips planned this year, we will be passing on the rally. We should return the following year.