Noone really offers $7 licenses anymore since CPanel raised their prices. Anyways you are looking at internal pricing. This is only for providers to sell to their hosting customers. External licenses cost much more.
The best price you will find for external licenses is cpaneldirect or buycpanel may give discount in bulk. I have had good experiences with buycpanel in the past for externals. However, if you need 70 licenses, you can contact CPanel directly to become a partner however you will need to purchase a minimum upfront.
The best you can do is to sign with cPanel and not deal with resellers. The $11 is a nice price which would go down once you buy more license.
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