Uncoupled brakes conversion?

[Lowespeed]

There was a conversion available in the 1930's, called the "Bodelo Brake Attachment". When I converted my RK saloon I used the lever from the end of the cross shaft and heated it red hot and bent it straight. I found adjustable pulley similar to the one in the advert from a yacht chandlers and where the cables joined the connection for the brake levers I cut one side off the forked cable end and used a longer high tensile bold through the capped end.