Screw the LS1, Dustin. Grab a 20B 3-rotor
http://www.turborx7.com/20bbasics.htm
I'll get you to join us sooner or later, haha. Check out the very bottom and see the potential!
I'd get a turbo DSM over a 2farty any day. Even if you can find an S-chassis for cheap, you'll have to spend a bit to have fun... unless you like doing 150hp donuts in parking lots
I know you're just looking at fun, but when I go to drift events or auto X for fun and 80% of the cars are Nissans, I kinda gag a bit.