Nice shop!

Items to consider if you haven't already asked yourself:
How much do you like and use the Husky box?
How wide do you want to make the Mitre Saw Sys-Port if you were to make one? (the saw is wider than the drawers, but narrower than 2 drawers)
How often do you need more assembly/work table area?
Do you need length extension or just more overall space? (MFT3 vs MW1000 extension table, but not sure if it would hook on the 8020)
I feel like the biggest goal would be getting the mitre saw top to the same plane as at least one of the other work surfaces unless you already have an infeed extension of some sort. The rest is just details.