general knowledge here, but if you want to xfer more than 50k, just buy some boes b4 you xfer and just sell them on the new realm, t'was what i have done before.
Asking in trade chat for people to sell you their winning Mysterious Fortune Cards works as well. If they have a winning card 1k wroth, offer them 1050g as an incentive to sell it to you. You can stack massive amounts of gold that way while server transferring.