Lets see, you want to non-rev to/from Hawaii, in June with a husband and two kids; Lisa have you lost your mind?
Ok just kidding, but you know, you do have a steep hill to climb.
As M767 said, the first thing to do is start praying that the non-rev gods are smiling and to hope thay have a terrific sense of humor.
The only things I would add is to

7- plan on splitting up ( your travel group 2 & 2, not you and hubby)
8- flexible home destination ( think "LOST", your goal is to get off the island)

Good luck Lisa, and let us know what happens, I always worry. BTW, did you make it to Croatia? See, I told you I worry.