I got my A10 from a brillient little place in Austria called British Only....
There were three A10's there... A 53 plunger, a 57 Golden flash and a 61 Road Rocket. Both the 57 and the 61 are great bikes in great condition but i just couldnt pass up the 53 :)
For anyone interested, the other two a still there and well worth taking a look at. I would have gotten the 61 as well had the wife let me
They also have a huge array of parts avaliable...
My other BSA is a 1927 S27 500cc that i have been restoring over the past two years...