Thanks guys.
I remember a fellow playing this at an Open Mic in Berlin, Germany in the 80s.
Totally impressed, I got the sheet music, but there was no chance I could play it then.
Somehow it got stuck in my head and came out lately, so I gave it another try.
With no decent sheet music around, but remembering that there were A and E-chords, I was able to get this arrangement together. Listening to the original on youtube was great help of course.
Last Wednesday I played it at an Open Mic.