So you essentially want a global AH? You just have to actually travel to buy the item?
No.
The whole reason we don't have what you are proposing is because it is a megasever, and a global AH would be a terrible idea. That is the reason for the system in place now. It is fine, and working as intended.
This is still the best solution to an undoubted problem, in my view.
Thanks Kallipsoe for updating it. Incidentally, I assume in the second paragraph of your OP you mean "hop" rather than "hope" - although I would agree that spending hours travelling around the world with different alliance characters in order to find an item for sale does involve a lot of hope!