The maguras and the kona levers have gone,
The forks are 1 1/8" dia, With a 150mm threaded steerer.
The quill stem is original fit with the forks on the fire mountain.
I have a set of front and rear Magura Hydraulic brakes which I think I purchased in 1990/91 and have been used on all my bikes since then.
I think they are the HS11 model - but this is from memory.
I bought some quick release skewers and also Magura braces, which helped a lot - my old...