I’d put the BV5 in Option 2 and the 3200 in Option 0 – all speakers connected to the tv…..means an integrated setup.
(Move the Airport Express to the 3200).
The BS4 should then be in Option 6 (= act as a link product) – you can only have one Audiomaster respectively one Videomaster in a setup.
Even if you would want to make changes in that room, it should be worth it to try that out before.
MM