Thank you very much! The E350 manual is very helpful. The previous owner included a Chilton's manual but most of the operations were tribal knowledge passed down from the previous owner.
I'll check on the roof when I get her back from my mechanic, who's doing a thorough inspection.
There is a Propane setup, but the prior owner advised to have it checked professionally before using, I'll include some photos when I get her back today. (Was hoping its as simple as plugging in a propane tank similar to what I use for my gas BBQ.
Appreciate your helpful tips.