Have you been up on the roof to determine if it will support a man's weight in all areas? If not, I would suggest NOT including the roof. If it can then go for it but then I would suggest covering the roof with a Sunshield tarp when stored.
Dick_B
2003 SunnyBrook 27FKS
2011 3/4 T Chevrolet Suburban
Equal-i-zer Hitch
One wife, two electric bikes (both Currie Tech Path+ models)