Pet Cool Question

I just bought a 2000 btu Pet Cool on ebay, and was wondering if those of you that use them can give me some advise for plumbing the vents. Since I'm just starting my cabinets, I can pretty much put the vents where I want (or where they should be).
Any suggestions for the best placement of the intake and outlet vents? The seller states that the tubes are 2" PVC, is that large enough, or should I make my ducts larger and adapt them down to a 2" fitting on the end to connect to the Pet Cool?
Do my ducts need to be metal like a normal heat duct, or can I just use a duct made out of plywood?
Anything else I need to consider, besides an appropriately placed electrical outlet?
Any suggestions for the best placement of the intake and outlet vents? The seller states that the tubes are 2" PVC, is that large enough, or should I make my ducts larger and adapt them down to a 2" fitting on the end to connect to the Pet Cool?
Do my ducts need to be metal like a normal heat duct, or can I just use a duct made out of plywood?
Anything else I need to consider, besides an appropriately placed electrical outlet?