To my knowledge there is no package for Ohana and Wishes.
Your best bet is to schedule your dinner ressie within an hour of Wishes, if you wish to see it from the restaurant. (note, not everywhere in the restaurant has a view, so you take your chances whether you can see it or not...however they do pipe in the music).
If you wish to eat and go out to the beach at the Poly after dinner, make sure you have your adr for 2 hours before the start of the show. Ohana's can be quite slow later in the evening (at least this is our experiences).
That will give you plenty of time to eat, and get down on the beach before it begins.
Good luck and enjoy!