Cheap glass packs have always sounded good to me, or you could even make your own baffles and "tune" them the way you like, that's what I did on my wife's 300. I welded up some baffles and bought fiberglass packing material off of eBay, sounds great and performs well.
Well, I most definitely want to save money as I have spend WAAAAY to much money on the drive train, wiring, and pretty much everything since I started with a stripped shell of a Dart...