Whether your a trainer or not means nothing. I know for certain. Speak to some of the ex Dragon trainers . You certainly won't go to a training position with another company. You may get a left seat gig based on your experience on type and hours only at a smaller outfit like some of the ones in Aus like network or alliance. But those gigs look at what rating you have and hours and how current you are and That's it. You won't be pulling in the big $$$ but it's not about that if that's your choice. I get it, and I will be doing the same soon enough.
Anything reputable like a major, will see you start at the bottom like the F18 instructor - instructor who was my SO.
Again, the illusion of being a trainer is the fact you are selling a pound of your flesh for the illusion of something magical when in reality is just not worth that much in the end.
It's the same as a degree from University. It's just putting fancy rims on an ordinary car, but it's the motor and the drive train that counts.