Pretty lame finishing touches, basically just jammed cardboard into the frame of the window underneath the panel, then sandwiched the foam board between the window frame and cardboard and taped the ducting into the vent board!
It was pretty insulative before,but now it's solid, temps should stay the same with this in the window unless were talking -40, sorry every other part of Canada
And a pic of it super zoomed in from like 10 feet away, closer than anyone's gunna get so I think it'll work!
It works really well and adds a lot of power to my 4 inch carbon filter fan set up, might not even have to upgrade it down the road!