Been off for awhile. Sorry to get back to you so late. Yes, I would go with the Koni Yellows if you have the money. With the Pro-kit, you will have a sweet handling car. I ended up having Ron at RSMotors install my camber arms and springs. Ryan does good work too.
i forgot exactly where i got my springs but it was about $180 cause i had a coupon code. You can just buy both from WeSellCarParts, PM him asking for a good deal for both parts. I would avoid ebay but this forum is good to buy used parts.