Rhino Slider head

[Starman]

I have a Rhino slider. It can support up to 70 lbs.

I need a head with a flat base, Rhino suggests the Manfrotto502 HD.

Would this support a decked out C300 with an ENG lens or a full sized ENG camera? I have a feeling the head would not be able to support this kind of weight.

Are there any heavier-duty heads with a flat base that would fit the Rhino 3/8's screw?

Thanks.

 

[Run&Gun]

The specs say 8.82 lbs counterbalanced, so it can barely support a stripped down C300 with a lens.