Don't use anyone else's nv data, major problems if they turn their phone on ever, and legal issues.

Just Odin the root66 mb7 full restore. That will put you to 100% stock, but with root. You can then use triangle a way to reset the flash counter and modified status, then bring it in to tmo. Make sure to tell them not to update you, or you are stuck with the new bootloader. They might update you anyway "for your convenience", just FYI.

Sent from my SGH-T999 using XDA Premium 4 mobile app
Phone: T-Mobile Samsung Galaxy SIII LTE SGH-T999L (White)
Android Version: 4.3 Jellybean
Rom: PAC-manNightlies (9/5)
Kernel: DKP 3.4 (9/2)
Modem: T999LUVAMB7
Tweaks: ComaDose v2.1
Apps: Slim Gapps