Default [Q] Recommended ROM for Europe?

Heading to Europe in near future, and thinking to purchase a SIM for use in my SGH-i727. Haven't used this phone in a while, though I do recall I'd rooted and applied a custom ROM (dang I can't remember which flavor; iirc it's a stock but rooted 4.1.2).

Wondering if it's worth considering a more current, or alternative ROM for the phone b4 I leave? Thanks for any advice!