Recently put a clutch in a 2007 Cobalt SS LSJ.....You don't want any of that even if you were healthy!
It will most likely need a Flywheel as well, ZZP sells a replacement LSJ one at a decent price! It's a German made Opel/GM product & is expensive from a dealer.
It cannot be resurfaced on a blanchard grinder!
I think the 2007 Cobalt SS LSJ and the 2007 Ion Redline are identical in regards to engine, trans, front suspension etc. The body-chassis and bodywork is very different, and there are subtle differences in the exhaust system in regards to overall length, hanger position etc. Most aftermarket exhaust systems are interchangeable. ZZP is one of the few outfits that sells quality parts for this engine- I have their stainless exhaust.