Nostalrius Begins - Quality wow vanilla realm (1.12)

Hi
Is there a similar service here where you can change faction on a character like on blizzard servers?

I have a lvl 43 horde warrior i would like to change to the alliance. Yeah sure, i can level a new one but warriors are a struggle to level.

A answer from a GM would be appreciated.

Nope, they don't do any changes for your characters.