Mr. Flybe Wannabe....
I too had a similar notion as you and upon looking around few years ago for a DHC-8 MCC course stumbled upon Olympic in Greece. Called them, spoke to a few friends here and in Athens and instead signed up with Jetlinx Flight Training which used 757/767 sims at Cranebank. The decision was more for their reputation and also for logistical reasons. I felt that the experience helped enormously during a Jet sim check and the subsequent Type Rating.
With regard to you, I would agree with most of the previous posts. If unable to MCC on a Dash then sign up to do a good MCC/JOC course. I think Flybe uses a place in CVT for new entrants to do their JOC...? Atlantic Flight Training...?? Then when the time comes for a Flybe sim check at FAB, if the finances allow (£2000 odd split between two for a 4 hour slot....
) practice on the sim you'll actually be assessed on....
It's prudent to plan ahead, but do remember One step at a time.... Good luck