I'd only go with the P225/40/17 IF your going to lower it for sure because that much wheelwell gap would look terrible, can I get an amen on that my brothers
As far as which tire, well, that depends on your budget and I think your former employer will hook up, am I wrong? If not, I have some pull with them as well, so either way, your taken care of Jacob
Now about those red calipers on dark colored rims, trust me, the red on that dark rim will just jump out at you, but its your call and I'm not sure the car paint can withstand the heat, so you may have to go my route or something else, but black with dark rims will not do anything for the looks of your new tire/wheel combo though.