moving from house to an apartment.. goodbye 802D's

Check out Underwood HiFi LSA 10 bookshelf speakers. Glowing reviews 

Good luck with your new neighbors. Hopefully you already listen to your system at moderate to low volume. Headphones may be a useful addition for those times you really want to kick it out.

Keep the B&Ws’
  don’t get rid of them.
place the speakers on large stone or concrete pads as sold at Home Depot, or Lowe’s, menards, etc etc.  in the garden section, old apartment neighbor did this under recommendation from his Dad.   They were about 3 inches thick I think (memory poor) plus a 2-3 inch cut semi soft rubber pads cut exactly as stone squares.

  There is always a way,........don’t give up......

Yes listen to everyone else. Keep the speakers. The sub will be far worse. The true 20z wave the sub puts out will go straight through the floor. 

Put them on Townshend Podiums. They cut the bass leaving my room dramatically. They also controlled resonances that greatly making for tighter, deeper, but much smoother bass. Also make a great improvement in overall clarity, detail and tone. Instrumental timbre, nails it. Not cheap but the other stuff you can try won’t make near as much difference, not even close. With subs you can get away with Nobsound springs for cheap, or Pods if you can afford it. You could also try Nobsound for the B&W but I think the combination of downfiring port and immense improvement in detail will make Podiums the way to go.