This is possible, because i am doing it. I am buying the the gt3 center console delete today/tomorrow it came down in price finally.
http://e-partssales.com/Merchant2/merchant.mvc?Screen=PROD&Store_Code=P&Product_Code=gt3console&Category_Code=POTEBXIN
so obviously you can put the ac unit above the deck, and delete the dumb ass cup holders and cd holder. the cup holder is useless to me, i usually ask for a cup tray anyways. n the amount of times that i've spilt coffee all over the place, i want it out now, so that i never attempt to put anything in there again.
cd holder i have already 30 gigs of music on my ipod which is direct connected to my deck and have no use for cd's in my car.