Since I'm one of the braggarts I should probably pipe up
I think 800 is not enough to start with the assumption that you're gonna start with a bare Frame and Fork but I do think though that you can do this for that much or a little less if you start with a complete or nearly complete C&V mixte for 200, and assume you're gonna buy a nexus 8 wheelset for 300 bux.
I guess what I'm saying is cost wise I think its a wash, and if the Creme has got you all hot and bothered you might as well get what's gonna scratch that itch.
One consideration I noticed... the Creme you linked to shows that it comes with a Nexus 7 speed IGH. I've got a nexus 7 and its good, but not sturmey archer quality. From what I've read the Nexus 8 "red band" is a different animal inside and is a much better unit. I haven't tried one yet, but I'd like to add one to the mix. All i'm getting at is that its not really apples to apples comparison between the two hubs....the difference is more than just 1 more gear....from what I've heard.