TT bike, HELP!

I've got the chance to buy a nice QR(quintana roo) CD0.1 ultegra from 2010 or a QR Caliente from 2010, both are beatiful, but the CD0.1 is much more aero, but I don't know if it is UCI legal as QR is a Tri bike company, please help! Which one would you recommend or choose?
Greetings
Cd0.1
Caliente
Greetings



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http://100hillsforgeorge.blogspot.com/
http://www.12on12in12.blogspot.co.uk/
I ride at National level, it's not the best one level(Peru) but some important international events are in target, I've read that the Cd0.1 is UCI legal in some kind of setup.... What about the caliente and dropbars? Does it would make it as a aero road bike?