---------- Post added at 06:36 PM ---------- Previous post was at 06:34 PM ----------
You should be good to go. Just follow the Retail Instructions / Coming From Stock NC4 OTA.
In addition to those instructions, before flashing Beanstown106ís Stock Rooted ROM... I would also make a backup in Safestrap of your current Stock ROM.
And just to be extra careful, I used these 2 apps to backup my IMEI: (Here And Here).
Afterwards... copy all the backups to somewhere safe like onto your computer. I haven't had to try to restore the IMEI yet, so I can't say for sure how well those backup apps work.... but the apps themselves confirmed that they successfully created the backups, so at least it makes me feel a little more secure in case I screw my IMEI up playing around with my phone.