If and a big if he was looking to sell his shares in Arsenal then my guess is that Kronke wouldn't hesitate and probably would use the facility he had inplace to buy shares with, I think, Detusche Bank
75% ownership enables him to in effect change the way that Arsenal are structured as a company and if he were to get total ownership , which he would if he purchased Usmanovs 30%, it would enable him to take control of the huge pot of gold that Arsenal have built up.
The Arsenals supporters trust are understandably twitchy a about Kronkes position and whilst he gave certain assurances when he failed last time to take control it was more about not putting debt on the company to finance any share purchase.