Your list of possibilities covers some range of price...
When I was looking at each of the bikes they all sat in the same relative price range (about 2000) with the nearly all the same 105 components.
The only real differences are the types of Reynolds steel used for the frame.
That logic looks awesome! I agree, it would be great if they had a built up option.
As far as name goes... I don't really care.
As long as the frame is solid and fits me right I am a happy camper.
May I ask why? They look like fun!