That's sort of a tricky question! "Seeing" everything and experiencing all of the attractions are two different things! A lot depends on when you're going because obviously, crowds could have an impact on your touring plans...
Also, do you plan to do all of the attractions or are there some you will pass on?
Need a little more info and then we can help you!
I will say this, if you go running through IOA without taking in all it has to offer, you'll miss out on a great deal! The theming and attention to detail is just incredible there, so be sure to stop and smell the roses!
Karen