You wont find much love for this kinda question here...

I'd say sell the BW kit all together if you can and use that money to get a tasteful lip kit.

As far as wheels, of those 2 options, I'd say the Si wheels... But there are plenty of other options out there. I would avoid 17" rims as they tend to slow your car a bit, and can do nasty things for ride quality. Get something lightweight in a 15" or 16".