I was leaning toward ordering the MCS with the sport suspension and then adding lowering springs from either Mach V or H&R. This will run about $750 + installation.
Now I'm considering ordering the car without the sport suspension and adding H&R coilovers, about $1,000 + installation.

The cost delta is not enough to make this decision for me.
Ride quality, handling, and durability are the important factors for me.

Do you think that the MCS with stock sway bars and coilovers will corner flatter and better than with the sport suspension + lowering springs?
Is the coilover ride stiffer and bouncier than the ride with sport shocks and lowering springs?
How many miles should I expect out of a set of coilovers?
How many miles do you expect out of your stock shocks paired with lowering springs?

Lastly, I would be spending the $1,100 + installation on the JCW suspension if I were getting the JCW aero kit. I think JCW tailored the drop to match the aero kit's slightly lower hanging bits and I think the drop looks sufficient with the aero kit; however, I think the non aero kit cars need the 1"+ drop.

Thanks for your input.