I contacted him, and he says that i have to round everything myself.
Bad investment in my eyes. So now i am busy, making my own plans. Redoing it and as soon as i am satisfied i will post the plans here. ;-)
I just have a little trouble finding the right rails to mount in the sides of my workbench. Don't know what type i could use for that. And to find them in Belgium or the Netherlands.
If anybody has an idea...