Ric Racing certainly does EXCELENT work, however be ready to spend an arm and a leg. it cost us someone I know $700 just to have camber/caster plates welded in. They are perfect, but others will do it for $100 or less... Not sure but i doubt he does welding at the track.
Smarty (Northeast Racing) IMO to go. Great price, great service and above all the quality is top notch. I wouldn't suggest anyone else, especially at the track. He has stayed up long hours at night, sat in 4" of water in freezing tempatures during storms to put our cars back together for us at NHIS, Lime Rock and Pocono. Remember he also has a large customer base looking for tires, so don't be worried when you see a welding torch in one hand, mounting a tire in another, his feet stacking used tires on the side, and him takling to someone completely different giving advice on what to do with tire presures...
Raymond