I have 18" wheels out back now and they just don't fill the wheel well enough but that may be solved with dropping it some more. I am going to think about it some more since as you mentioned tire choices are very limited with 19". Here is a side view.
Those wheels and your sizes are right on the money! Don't listen to everybody bagging on plus size wheels. You don't have to look any further than every new high end supercar to see that you know what you're doing! It's not bling, it's high performance styling. 22s all the way around is bling.