Congrats! Love Magnus' "budget" SC. The stanceworks photos are under exposed on purpose. It gives the red a much darker and richer appearance. It's really a Guards Red if I remember. Not that it matters but FYI.
Can't really go wrong with black and red as a combo. White as well. You could always vinyl GPW wrap the car sans bumpers, and then spray them india red, that way if you wanted to have mono tone India red car later, just peel the wrap off. The other advantage is that you would not have to try to two tone match a red car with some other bumper color. The only combo I can think of that would work on the bumper is black. Black bumpers don't seem to look right imho.
Check this thread for some ideas :
http://forums.pelicanparts.com/porsche-911-technical-forum/797352-show-me-your-two-tone-hood-different-color.html