Welcome aboard CF Arnmax.
When you say crew of 2.5 you are kind of joking with a 5 y/o kid. That's not crew, that's a passenger. You suggest volunteer or hired crew. I hate to burst the bubble but I'm with Cellestial.
I person who is "solo" may welcome crew. Someone with 2 or more already on board doesn't really need crew.
I would be careful (loathe?) to take a husband and wife - their dynamic is already fixed - I become the minority on my own boat. I would never take their 5 y/o kid. I also wouldn't pay anyone. I might consider a volunteer but I would most likely expect them to pay their expenses.
There are just too many people out there to choose from.
I suggest you get your family settled and get involved in sailing locally - It is expensive to cruise
the world but owning a 22 foot weekender is no different than many other hobbies - RV-ing, dirt bikes etc.
If you really have the bug save you money
a boat of your own once a year or every two.