BoeingMEL
It is now possible to do a Mustang type rating in the UK at Flight Safety Farnborough approx £10000 I think,other sims are Florida and Wichita.
I expect the Farnborough sim to be very busy in the forseeable future though as it's the only one in Europe and only a few instructors on type to date.
Iver,
LEA have one Mustang at Farnborough,Luton,Stanstead and I believe the plan is to have one at Biggin Hill and London City but don't quote me on that.You will be allocated a base but I would imagine you will be expected to go wherever the aircraft are or end up at the end of the day.As for roster 6 on 3 off with an expectation of flexibility on your part.