So who knows the best way to get to the other region (without getting on a plane or boat

I created an account on the EU battlenet. I now virtually live in the UK.
After some fooling around with the new Battlenet launch app I got a new WoW tree started \EU\Battlenet and \EU\World of Warcraft
I started the EU version download... that will take awhile!
The battlenet app keeps claiming the game is playable... when it really isn't (bug in the app) [I don't really need the full game files to sit in the player starting area and run CensusPlus.]
After hours... I gave up on the download for the day.. I need to do testing on the new CP..
Launching the old EXE brought up the game which failed to get a valid login. After a little thought I restarted the Battlenet app and forced a region change and logged out of my EU account
I had to had clean out some bad region update info from the WoW root directory and was able to relaunch and get NA version of game running.
I don't see how it is possible anymore to have 1 client running on NA realms and account, and have a separate client also running on EU realms and EU account at the same time.