Good repair shop or somone who services SVXs in NJ

[Weebitob]

After, having some regular gas put into the car by mistake which caused knocking. The vibration continued for a couple weeks after it was almost totally re-filled with 93 octane. I read up on other threads and it could either be the wheels being slightly unaligned or the U-Joint needs to be replaced. I also have been wanting to replace the radiator for some time, with the PWR I bought a while back and flatter cap included.

I just want to know if there is a good repair sjop or someone here who is familiar with servicing SVXs to do it in the tri-state area. Any info would be helpful.