Does 'family sharing' require that members use same apple ID for both iTunes and iCloud?
To use Family Sharing, you need to have the same Apple ID on both iCloud and iTunes.  It looks to me like you'll need to decide which Apple ID's your family wants to use and stick with that.

On a side note, I don't understand why you'd want to have seperate ID's for each service.  I'm sure you have a good reason but I would strongly recommend using only 1 ID for everything Apple.