I'm looking for a rock solid tripod head and the one I think would work at a reasonable price is the Gitzo G1570 serie 3.
it would be to support the Toyo and a Nikon 450mm lens.
Thank you both for your feedback I've contacted Luland to get some information about cost
Any other products or brand I should consider?
I already have a Manfrotto + QR 410 junior head but I feel this is too light when I have my 810 + 450mm lens all together.