if you want me to type a 500 page post detailing the ins and outs of how it would work then i could write for days but i can't be arsed.Why?
Moshi is worth over £1b, there is no reason for him to be seeking assistance from anyone, least of all a 30% stakeholder in arsenal (who would be prohibited from helping).
in short, usmanov will obviously have to sell his shares in arsenal, he would then acquire the remainder of the shares at everton and moshiri would acquire 0.1 % to become joint owners of the club.
Moshiri is a billionaire but if he invests all his money in a new stadium, players, clearing the debt he will no longer be a billionaire