Well, i wish i have money to get real stuffs to my machine...
As you know, heare in 3rd world thing are so much more expensive. Multiply by 3 or 4 the costs.
I bought today the rubber hose. I worked 4 hours on the new coupling system. It seems to be OK

!
Tomorrow i will make a test, but moving by the fingers i can see the rubber hose work, really amazing. I should made this at first time...
The mounting stoped as the pictures show.
Thanks guys, you are good guys !!!!!