Send in an application. Let them decide if you're what they are after. You have nothing to lose. Also, starts to build up a "story" with them.
One of our captain's is off to them, he has about 2500 hours with 1000 hours in command of the mighty Shed. Mid 30's. Another captain has an interview coming up. Late 20's, prob ~1000 hours command.
I'm hoping I'll get a call too. (5000 hours TT, 1800 turbine, no command turbine yet - from Australia, late 30's)
A couple of FO's have had interviews (age unknown, exp ~500-1200 hours on the Shed. Not successful I believe)
All found the interview itself ok.
So, there's an idea of the demographics.