I need ideas for vent to suck air out that installs on side of rig instead of top?

[magentawave]

Why not just install it in the side wall?

I may just get the fantastic fan and cut a big hole in the roof of my topper.. I'm a little worried about structural integrity and leaks. Most of my roof is also taken up by a rack and a 100w solar panel.

 

[trailscape]

Why not just install it in the side wall?

I'm looking at maybe replacing the driver side window with a solid panel to install a fan into, but other than that there's just not enough surface area on the topper sides.