I got one of these for the 41 Sedan but with an braket that fits the Sedan frame.
So far so good. But there is no chance to mount the clutch pedal wich is mounted together with the brake pedal on the original master cyinder.
I will ether modify the booster braket to accept the clutch pedal or cut the front portion of the original cylinder of and bolt it to the braket.
I go and make some pics and post them here to show the procedure.
Frank