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As long as you pass the OBDII scan, no CEL all the monitors passed, and a visual, you are good.
If you fail the visual, the only thing you might remotely fail for, there is no fine, you just have to spend up to $xxx to repair before you get a waiver until next inspection.
If there's anyway to maintain your SC registration, you don't even have to worry about it.
Clown down the street had Michigan tags on his cars for close to 10 years, now he has PA antique or classic tags on 20 year old POS beaters just to avoid inspections and insurance.
Be prepared for a culture shock coming from South Carolina to Philly.
Oh yeah, the roads are beyond total crap for the most part until you get away from the urban areas, then they can be amazing.