Lug nuts are the same between models so if they came off an SRT6, they'll work on an NA and if they came off an NA, they'll work on an SRT6. Heck you could even mix and match if you wanted to but it would be a son-of-a-gun trying to figure out which was which after the wheels went round and round a few times. LOL
BTW, Good luck with the sale and hope you find your way back here from time to time.