I recall reading about somebody putting together a kit or something a while back... Basically, I'm leaning quite heavily towards a supercharger of some type. I haven't decided whether to go roots like M-112, or centrifugal like a gear-driven vortech... I think the centrifugal would be an easier install, since I wouldn't need a custom intake made, but I've seen the m-112's go for as low as $300, which makes it attractive. I have a budget of <$1400, so this should get interesting.....

edit- yes I know chrfab has done them, but I'm talking about in a car, not a dune buggy