I doubt a 3.8 SC will fit, since that was made they've changed the SC 3.8 enough... However, my neighbors daughter had (has?) one and it's a nice ride. Those cars were pretty reliable since GM made them forever!
If you got the time you'll definately find used parts. As for aftermaret, or OEM..... that has got to be a very small if not existent market.
But if you can get it running, painted, clean up those OEM wheels, get some new rubber & stuff you'll have a decent ride.
Sporty.....well no, but not everyone on CEG needs to be NOPI.
Good luck!