I did see Allen Campers website some time back and emailed an inquiry that they never answered. I am kind of picky about a business getting back to me if they expect my business. Taylor Coach answered right away when I emailed them. On insulation, if you can locate the youtube where they assemble one you'll get an idea of how it goes together and I believe I saw plenty of insulation, batt-type. Expect to pay more but you're getting more. We bought an entry level Forest River Salem, 24 foot some time back, poor construction and materials so that is why we were looking elsewhere. We got a very rough idea of what the cost would be on what we were looking for and since the units are all made to order, that will really vary. We figure if we purchase the Taylor Coach, we won't need a new one in 4 or 5 years and can easily use our current tow vehicle. Taylor Coach has a Facebook page and many, many youtube videos.