Keep an eye on this forum and the Flight Global jobs section.
I think if I was in your situation I would get on to the AIP, make a very large list of all the airfields it would be possible for me to work at and then call/write/email the SATCO. Even better, just set up a mail merge to create covering letters and include a well written CV. Don't be picky about where you go to, just get yourself a validation and more doors will be open.
Good luck