Here are some new photos. Later on I will put some more photos because I can not do it at one time.
I changed fork cylinder-set, spring-front, fork spacer, etc. from another ZG. Put new rear tyre Angel GT. During balancing it turned out that the brake disc is curved in one place. I managed to repair that small inflection. Later on I will write other things which I made. I would like to thank as well to my friends Uhma and his mechanik team for sharing his garage, tools and advicing in doubt
According to Area P. I spoke to few mechaniks and thay advised me not to touch it, not to worsen the situation, especially it is not so bad. I did all plastic fit and now evrything fits like a glove. Now I will have to do paint job.
Therefor I will have to disassemble all plastics and then I will have more time to think about that issue.