Thanks a bunch, but in the meantime I bought Orange 200-260 carbon mono boom at the local store. (not sure if this brand is known in the US)
I think shipping from the US would be too much + if I break anything I'd have to send it back and forth.
The dealer was honest with me that the boom itself is great, but the clamp is not so great and he switched to a Streamlined boom head which he says is the best combo he ever had.
Wonder if you have any experience with Streamlined heads.