Update: Just came across this place that sells lots of Webasto heaters and other brands. Apucenter.com
417-736-3000 Webasto out the door for $700 pretty sure they are the good USA branded models yes made in Germany, 1 yr warranty but 2 yr warranty if they do the install.
This winter we could have used one of these while snowmobiling, temps got down to -15 at night. Snow has been great the bath vanity did freeze up for a few hours.