Why don't you check out the Aviation Leathercraft web or call them ?
Irvin Flying Jackets - Leather Flight Jackets, Sheepskin Jackets, Leather Bomber Jackets
I've got a couple of their products namely the Tornado leather jacket loosely looking liken the US A2 but with Velcro covered sleeve pen pocket and the NATO Tiger leather jacket which has sleeve pen pocket and side entry pockets which fasten together when close. Also has two inside pockets.
The latter is kinda similar to the MoD pattern issue jackets but not with the closed flap for the sleeve pen pocket. THe NATO Tiger jacket is also similar to what the police and air ambulance crews wear
Cheers