All done. Fixed. Everything was bent back in shape - no need for replacement parts.
Gluing (plastic welding) the fairing cost me 10 euros.
A mate mechanic let me use his shed, straightened the fairing mounting (that was difficult, the front mount that bolts to the frame, that holds the light also).
He also offered to paint my fairing.
That cost me 150 euros - a rip off IMO. But told me the price afterwards. Before when I asked the price, he said it won't cost much, unless some new parts need to be bought.
However, the bike is up and running.
Left fork is a bit bent. The bike goes a bit to the left when I let the bars go. Mechaic turned it some 90 degrees sideways, loosened the bolts holding forks, yanked them a bit, twisted, and tightened it back. After that, the bike just slightly turns to the left when I let the bars go - leaning just a bit to right is enough to compensate. Mechanic said it won't be a problem. I don't notice any change when holding the bars and riding as I usually do.