Without wanting to go into your personal life.....
I will assume that you are moving to a smaller location, BUT that you have bought and CAN
afford all the kit....
So here is what I would do.
KEEP IT ALL....Run a stereo system to fit the space.
Use the 802D as main stereo pair. Bi Amp them - That uses four of your 7B's.
Use B&W centre with one 7B If you can fit it in, that leaves the 803D's to store for another day, or connect to a TV/Radio in another room ???
For films the center ch is the most important in my opinion,
This will give you amazing stereo and film use.
IF you need to realise some capital back then sell the B&W center and rears, run a pair of 7B on the 802. Sell the other 3 7B SST2
PS - I know a good home for 7B SST 2
Hope you find that of help, Andy.