Warpath is selling on eBay now. I just did this to my '68 GTO and got a substantial savings buying the parts seperately from a PY member who has a connection with Warpath. I already had a set of open scoops but got everything I needed from him with the exception of the wing nut, filter element and one of the foam pieces. Even after buying those parts from our host, I probably saved $150 or so over buying the kit.
Here's the thread I started in which I was asking basically the same question as you-
http://forums.maxperformanceinc.com/...ght=68+ram+air