Okay so from the looks of this thread your ideal setup is a nice set of wheels with good fitment that doesn't break the bank. No offense to anyone who may run them but TSWs, saleen/cobra/mustang wheels are cheap and heavy. Like Damon said once the tires wear out go get a new set. OR If you want a solid, light set of wheels you need something either flow formed or forged. From the earlier posts you would like a stepped lip mesh style wheel. So I'll post you some reccomendations at the end of my post.
Now regarding fitment. Everyone uses anecdotal evidence about what fits and what doesn't and everyone has their own opinion about what looks best. I'm of the "hellaflush" generation and I have very aggressive wheel specs on my SC.
But my tires never rub and I'm lowered 2" because I perfectly chose what the car can fit and what it can't. And I've been on this forum for about 6 years so I know what all you old guys
like. So here is my input as to the MAX size you can fit on your car since you said you had a roll. If you follow my guide you will have a very aggressive but perfectly functional setup. If you want less aggressive, still use the guide but add 10 to the offset. If you buy new from a company like Forgestar you get to pick the offset so pay attention!
The stock wheels are 16x7.5 et38 with a 225/60/16.
My specs are 18x9.5 +20 front with a 245/40/18, and 18x9.5 +15 (same wheel with 5mm spacer) and a 255/45/18 in the back. Front fenders are stock and rears are rolled flat. I used to have the 255/45/18 in the front too but it was too meaty looking so I sidewalled down.
If you want to run 19s, the most you can go is 19x10 +30 with a 275/40 tire in the back. You can't run any lower offset than this without rubbing or stretching the tire which I know you don't want to do.
For the front, personally I would want to go staggered. So if I went with a 19x9.5 I'd go 19x9.5+30 with the same 275/40 tire. The narrower the wheels, the lower the offset you can run.
As for wheels, I'll be buying a set of Forgestars next most likely. They're the cheapest high end wheels on the market and are flow forged with customizable widths, offets, and finishes. A true brand new bespoke set of wheels can be had from them for well under $2k. http://www.forgestar.com/v2/wheels.php
If you like any of those let me know I am a forgestar dealer.
Also, look in the used market!
The king of stepped lip mesh style wheels in my opinion is the Work VS-XX.
Three piece forged Japanese steel. Strong, light, and super sexy. Same brand as my wheels.
While not stepped lip, the BBS RK is one hell of a wheel and are affordable second hand (discontinued). I know they've been put on an SC before.
Enkei RPF1. Classic racing wheel that's very affordable. I also know these have been put on SC's before.
Other brands to take a peek at: DPE, HRE(Expensive!), iforged, Work, etc.