Upload & Sell: On
How does the Benro head hold up? Can it pan? what is the load capacity? Good enough to hold a 70-200 f/2.8?
I've never used a Benro ballhead, but the B1 can pan and has a separate panning lock, the stated load capacity is 12kg (26.4lbs), and it should be able to deal with your zoom. It also comes with an Arca-Swiss type clamp and small universal plate. I do have the Benro PU-60 plate and while it's an excellent little plate you should get an L-plate that is specific to your camera body.
One of the respondents in the C2680T review thread linked to in post #6 above bought the kit from that dealer then sold the ballhead for $100 and bought himself a Photo Clam ballhead. The B1 sells on B&H for $166...