Welcome to the class A forum although you other post helped me get a better feel on how to answer. "We would most likely be on the road a few months a year stopping at places of interest for a week or so. We also have friends and family around the country, most where we can park the motorhome during our stay. From what I’ve seen and checked out so far the 30 to 34 feet should give us enough room without giving cabin fever yet small enough to get in and out of places." Pretty sure you figured out you need a toad by the answers in that post. Also, it helps that we now know you will be keeping the house near the space center.
I would start by reading Johnny T's post on first time buyers by clicking on Class A in the box at the top on the right. The joke about retirement, well actually it's not a joke: Twice the husband on 1/2 the money in 1/10th the space. Oops, at 30' that's 1/20th the space. It worries me when I see first timers looking at short MHs. I learned the expensive way $$$$ that you should buy more USED MH than you think you need ...ONE TIME. Fortunately my first was a used 36' and too soon after a 40' and now for 11 years... 42' as half timers. The shorter the rig the smaller the tanks... have to dump and refill more often. Cuts down on how long you can go off the grid... boondocking. After many rainy days and regardless of how lovey dovey you'll wish you had a bigger MH. There are not many diesel MH's that short... lot's more at 36'+. It's a lot easier to make it homey when you have plenty of CCC and the storage compartments to haul the stuff.
Hope this helps as I learned the $$$$$ way.
