The Eifle Tower!!!! LOL

No Really, I used a Gitzo with the one I had, and still continue to use it with my 600 f/4 35mm lens, I have also used an old Davis and Sanford as well as a Reis with my big glass

Anything lower than a bogen 3221 is not going to give you the support you need, and yes the wimberly is the best way to go for a head, that is a big piece of glass!