I don't know why people are still doing FI courses when it has been clear for many months that there are no jobs, even FTN magazine details the current surplus of CPL qualified FIs.
All the schools are swamped with calls and CVs from FIs. Your best bet like most aviation jobs will be to get in through someone you know, or to be in the right place at the right time. Any decent school will just want to see you have the ratings, then they'll flight test you and that will be the decider. But thats all irrelevant unless they have vacancies. As mikecr says, go round the schools closest to you and perhaps you'll be lucky, expand your search until you manage it, I wish you well.