I think part of the £80M and all of the "add ons" were over 6 years........not the entire amount over the 6 year contract.
As a Hammers fan I just hope they milk it for all he could be worth and take the money for re-investment in the team. And for the player he's going to end up at a much better club with better players around him week in, week out and that will bring him on. Can see him going for £100m plus easily in the current market.
All gone quiet on the Kane front so assume Levy has ruined his career in the Uk, once again........