My heart dropped for a moment there... Temporarily living in Singapore for work, I would prefer to use the Asian firmware since I bought the phone here. It seems to be more reliable too. I also like knowing when I move back to the US it will have been tested working well on AT&T.
I have yet to dabble into full ROM building and making mods with the whole odexed business kinda scares me. I dipped my toes into some theming and basic mods on the Arc-S & GNex but don't recall odexed files on either. So, I'm glad there is still hope for your work here.
P.S. other current & abandoned tweaks/mods for Euro Roms seem to work OK with yours. Be sure to clear the cache & be patient on boots and initial Rosie loads though!
Sent from my HTC One X using xda premium