Solar Panel Installation

[Wavery]

I got an 80W Solar Panel for Christmas so I just ordered a duplicate to it so that I will have a 160W array.

I am thinking of mounting the panels on the front part of the rear (lower) roof. I want to mount them so that they are covered by the front roof when the trailer is closed.

I was wondering if anyone has ever researched doing that. I have 2 concerns:

1. Is there enough room between the roofs with them closed? I'm thinking no...
2. Is the overlap far enough (36") between the front of the lower roof and the back of the upper roof?

My panels are 26 1/2" wide, 36" long and 1 3/8" thick. They weigh 14# each.