It's a S650. I bet It will be a supercharged version (GT500 or Ford's own non Shelby variant). A AWD would really require a new chassis design altogether to do it the right way.
I would get the HP springs from Ford. The DH HP stance is perfect. Hearing about clicking and noises from aftermarket springs would make me worried.
The non-HP stance looks goofy to me, big wheel gap... sits like a commuter car for a "track weapon".