So if it fails now there are two other options. Thanks.
I am not a big fan of reviving brake master cylinders this way.My experiences are not so good, and with my mini's in the past it didn't last very long.Most of the time the water in the brakefluid pitted the cylinders to much.With a bit of searching you can find brake master cylinders for low prices.This one I bought for €38.-It is already fitted.At the same time I revised the booster and made a new vacuum system.System from a Volvo.
I think the cruise control pump will not be fast enough and will not reach the underpressure needed.It is to small andprobably to slow.This is what the Murena give from the engine.The UP 28 Volvo pump is much stronger.