the ls wheels are 5X108 (5X5.25) wich happens to be the same bolt patten volvo uses. I have not tested this but any 200, 700 including 760 and 780, 900 not 960, v, or s series wheel should fit. I belive the offset of the ls rims is a 60, and the fwd volvo's are like 40 or so, the rear wheel drive ones are 20 or so. So the wheel will stick out a bit, this may be enough to get you home though. The fwd rim should stick out less. Did you call brad at 850 customs to try to track down a new rim? Sounds dumb but but I always see it in your sig so I thought I would ask. I have had a rim repairs, whoever did my rim was a jerk, the rim is still egg shaped. If you can find a new rim I reccomend just doing that. It wasn't worth the repair fee unless you have a very reputable rim repair shop.
Eamonn