advise on key west through panama trip...

[chef.jon]

hey guys lookin for the rules and routes for cancun through panama canal leg on a 25'-32' cruiser. i understand the mex rules but didnt see a customs dock in cancun. Also don't know what's going on south of there.... should i skip belize and honduras and shoot straight for Nicaragua then the canal? or out to the caymans and due south? I know i can't take my time with hurricane season coming up quick. So many variables...any advise would be much appreciated.
thanks in advance!