How i mount it on a boom
The antenna works as it should. After i've finished it, i've put it on a pole around 4m high and i just had to trim a lil bit the driven element (2cm longer) and the SWR was 1:1 and all the 6m band. As stated by Dk7zb it is realy easy :).
Thank you Martin dk7zb and Udo dk1fun (for the idea). And surely thanks to my friend Andrey S56ZAB!