As has been discussed many times, PPL instructors are less likely to find work than CPL instructors and if you already have an IRI or the experience level to achieve that instructor certificate then you're of much more interest. Stick an ME on that and you should walk into a position.
All depends on lots of things, not least location!
I'm crying out for experienced instructors but have a large pile of low hour instructors CV's in my inbox.
Pay wise...again, depends on what you teach and where - so can't be much more specific than that.