I'm back again with this bike.
First I got the putty finally smooth enough for primer. The front mud guard was trimmed to give it a better look. Then I painted the parts in VW Blue Anthracite. And some 2K Clear.
The frame and wheels were painted gloss black and also 2K clear.
The steering is very ugly of this bike, so I had to replace it with something more sportive. I couldn't find the right parts, so I made my own clip ons. Just a piece of tube that fitts over the fronfork, drilled a hole in it and added a brass wire. Now I can easily glue the handlebars on it in the next step.
Kris.