Our car is missing, um, everything. Find another car?

You have to spend the next week crawling Craigslist I'm afraid.  See the stick thread above discussing the new rules for 2011, specifically no cutting/removal of the factory crush zones of the car.

Well at least you have a spares package.  Just find an almost identical car.

This. You can find Saturns everywhere for cheap, and you can probably use it for spares on any other Saturn from the 90s. You may want the SL2/SW2, though, as those have four-wheel discs, although you can probably do that conversion easily enough from the cheaper model.

Has anybody run a Saturn wagon ever?

Not quite right on the brakes.  The S-series up to at least 1999 only had rear disc brakes with the ABS option.  A twin cam (SC2/SL2/SW2) does not mean that the car has rear discs.

BTW, Saturn uses a craptastic 3-channel ABS that brilliantly removes all sensation of braking if you attempt to brake while a rear wheel is off the ground.  Learned that one the hard way.

But, yeah, everything mechanical is bolt-on swappable between all of the S series cars. 

Most common problems with those Saturns was mysterious oil-burning (improper break-in?), too-small oil hole in the timing chain tensioner clogging and self-destructing the tensioner and ultimately the chain (if the car looks like it hasn't had the oil changed regularly, this is VERY likely), GM alternator too close to the exhaust (thus burned out every 50-60k) and plug wire life about like every other wasted-spark car.

Good handling, reliable, lightweight car.  What could possibly go wrong?

I know squat about the later Saturns.  I owned a '94 SC2 for 7 years, my wife had an SL1 for 10 years, and anything that doesn't have plastic body panels on all four corners is not a "real" Saturn to me.    The original 1.9 Saturn engine did, indeed, have problems with the oil hole in the timing chain tensioner IF oil maintenance was not up to par.

firegremlin 
By the way... Where are you racing?
I have a lot of parts!!!