Was about to make these instructions, as I promised last night in the other thread as I made it work on my Canadian Rogers version few days ago. Simply did not have time.
Difference being I used latest nfc apk from i9300 version and just copied it over with root explorer. That takes care of getting stuck at first screen. The modded wallet apk although does not check the country still will not add the card without using market enabler, switched to tmobile or sprint from Canada and elsewhere in the world.
If it still errors out on adding card, the htc_jewel build.prop edit is needed as well cause there are reports that wallet is down or blacklisted for sgs3 except for sprint version.
Good job ogdobber!
Sent from my GT-I9300
"Glory is fleeting, but obscurity is forever!!!"