Just read through the thread. The best ones I read were Amir Johnson with a jumper, Serge Ibaka and Chris Bosh.
I feel like Mickey has a similar fluidity of motion to Bosh, so i'm going to go with his highest ceiling as a poor man's Bosh.
I cringe whenever people use the term "poor man's". The fundamental problem with evaluating people that way is that what makes someone like Bosh valuable is how great he is, not his playing style. There are guys who can't make the NBA who can also be call a "poor man's Chris Bosh".
Saying what his play style will be isn't saying anything about his effectiveness or his ceiling.