The Bogen 3047 is a fairly lightweight head IIRC - good for a camara in the 7.5 Kg range, yes? You might be able to get away with the Gitzo 1227.
I've been using one for about four years now. Admittedly, my camera is extremely light weight (Toho, less than 1.25 Kg). But the tripod is quite rigid. I've never lost a shot due to motion or camera shake that I could blame on the tripod (I do have a 90 second exposure taken on soggy ground with some motion blur due to my moving around the tripod, but I can hardly blame that on the tripod. It's more a problem of my being restless!).
IMHO, most people buy more tripod than they need. It can't fail because overkill never does. But why lug around more weight than you need to? The price of going overkill with a tripod is shorter hiking distances, and being more tired as you set up and work the camera. Being tired is a receipe for making mistakes. So... I think you should look at using the least amount of tripod you can if you are going to hike any distance at all with it.
That said, if you are doing the car thing, it doesn't matter as much. In that case, I'd go for less expensive.
Sorry I don't know anything about the Bogen CF line. I've never even seen one.
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