Yes, Richard Clamp is the man. He's actually in Dordon, which is between Tamworth and Atherstone. Better still he is just off the A5, a major route so none of this round the backstreets trying to find a man in a shed. Been doing gearboxes for years. Straightforward to deal with, high quality job to your spec, reasonable prices, good bloke.
How this thread got mixed from JB Restorations at the other end of the country is a bit weird, but for BSA gearboxes, gearbox parts and repairs in the Midlands, he's the fella.
Swarfy.