Job done!
The black wraps came in a 50 feet roll from my local Harley Dealer. Needed plus/minus 7 meters per side. Gloves where a must!...followed Austrians advice to wet them up before wrapping them.
I did a half an hour ride afterwards to dry and test ride with the first 15 minutes
in spectacular fumes

having all the pedestrians looking at me
...That was my morgasm for today

...and by the way, my concerns about the plus heat in the engine, the Mecan at the Harley shop told me that it is really negligable, the ones he did never came back with engine heat problems due to Exhaust wrappings