In reply to poigol5043: There's loads of providers out there, mostly very good.
Gear wise you'll need to have rack and ropes etc because you need to be a climber first, then you can think about being an instructor.
It would be very difficult to make a living out of just being an SPA. As a minimum I'd look at getting your ML as well, even better to get you're kayaking qualifications and possibly other stuff like caving, mtn biking etc.