The decklid has already been hacked, I used to have a FWD 3.1 Gen 2 in there, the alternator was right in the top rear corner and I had to cut out a large part of that structural rib already. I had a few laughs when people were like: "You did all that work, put that motor in; and you have a stick to hold up the trunk?"
The real problem is that the pulley and belt will interfere with the deck grates, it would be about an inch or two into them. Im thinking I will have to cut the decklid in half, do it MR2 style with the trunk having a seperate lid from the engine compartment. That will be an interesting task. I believe the SC will stick up about 4-6" higher then the top of the hump on the decklid. I am thinking about putting in hood (ok, Deck) pins in for the engine compartment. On a nice non rainy day Ill take the heavily modified engine deck off and drive it around with the supercharger sticking WAY out for everyone to see.
but maybe I shouldn't get way ahead of myself. I have proposed several different designs for the airbox. This one looks promising.
The thick blue line across the bottom of the supercharger is a 1/2" thick Aluminum plate witch the supercharger is bolted to (Grey represents bolts) Below that plate will be the airbox, constructed with probably 3/16" thick aluminum sheet metal the airbox will only be as wide as the outlet of the SC. The SC's weight and forces from the belt will be held by supports shown in blue going from the intake manifold bolts, (all of them) to the plate that holds the SC. The Fuel injectors are shown in black. My main concerns is air distribution, will the middle ports get more air then the outer ports? and support for the forces of the SC being pulled on from the belt. lastly, how to keep it so that whatever I make to hold the box and SC, has to be fairly easy to remove.