nice, those tubes are kinda needed, without them all kinds of light leaks in... what is the size of that hole?
theres two ways u can set up ur fans but either way they should be right up aganst the tubes:
1 u could cut a slot at the top of the cab, with 2 intakes so the high pressure of the air inside will push all the hot air up and out through the slots. id say put the second intake right across from the first.
2 u could use one fan for intake and one for an exaust, try to put it high up on the opposite side as ur intake.
if ur cab is well sealed the 1st design should work better, but if not the pressure wont build up and the 2nd would work better. if u want to seal it better, go to any department store and buy weather stripping, its easy to install, just peel off the backing and just make a strip around the door. would fix the light issue to... (heres a pic so u know what ur looking for)
about the tray, it will work all the way through if it covers the whole bottom of the cab, if its a bit smaller just make sure its a bit deeper. if u cant find a good one im sure u could easyly build the perfect tray.
lst should be real easy to, just bend half the plant left half right
hope this helped
