Originally Posted by Betty White
I know that but they support their old builds.
Yes, but they won't do what you need, swap one conversion off a 15 year old van onto a 18 year old van.
I don't mean to discourage you, plenty of folks have done what you want to do, but Quigley will be no help. You'll need to have welders, plasma cutters, etc, and someone (yourself?) who knows how to use them. It's doable, but it's not a bolt off/bolt on project.