Here is the current state of my kegerator:
I am in a long term process of unifying my faucets to the 650ss. I currently still have ventmatic, 425ss, and 525ss faucets, but have converted half of them over to the 650ss. I have a total of 14 faucets out of the coffin box from the walk-in, and you can see the ones I've converted, because I've also changed the lines to bev seal ultra on those with the john guest shank fittings as well.
Once I convert all 14 over to the 650ss, I have been thinking about adding another two on the side of the coffin box for a total of 16 faucets. I had originally thought to do an offset row on the coffin box, but that was before the flow control faucets had been released, and the flow control would get in the way if I were to do an offset row.
I'll try to remember to post an updated picture once I convert all 14 faucets over, and have all john guest fittings and bev seal ultra lines in the walk-in.