What they said but buy a level 25 guild, that's easy 50k spent and easy to sell on the new server.
Does he really need to transfer over all of his 2M gold to your server or would it be sufficient enough to just move 1M? I would say 1M is sufficient at the moment. Your best bet would be to use the guild transfer system.
The inscription vendor cards and the trash from blingtron are how most of the ppl I know get around this. Sure the best blingtron grey is only 200g and it doesnt stack if you are moving a guild you can jam that bank with them. The cards on the other hand get into the thousands and make things much easier.
---------- Post added 2013-03-03 at 10:13 AM ----------
Beware of the man who works hard to learn something, learns it, and finds himself no wiser than before... He is full of murderous resentment of people who are ignorant without having come by their ignorance the hard way. -Kurt Vonnegut, "Cat's Cradle"