Default [Q] Reset to stock 4.1.1... was this a mistake?

My Note 2 had been running CleanROM for over a year, and I hadn't updated or done anything to it in that time. I was having some issues with lag and such but the final straw was yesterday my GPS quit working completely. When I tried turning it on my phone would freeze and I'd get a "System UI has stopped working" notification. So today I decided I'd start fresh and go back to stock 4.1.1 (I'm 99% sure that's what was on my phone when I got it) and used ODIN to flash back to that.

My question is, where do I go from here? I want to use one of the new ROMs utilizing the 4.3 or 4.4.2 versions, but I'm afraid I'm missing something important. I know not to just take the OTA updates, and I already installed (I think) the 4.3 MJ9 firmware update, but I'm not sure because it still says --- Android version 4.1.1 ; Baseband version I605VRUEMJ9 ---- Is this correct? Am I safe to install a 4.3-based ROM or do I need to update something else?

Thanks in advance for your help!!!