Wanted: Cheap Light alu Road Frame 56/57

I don't know a ton about this frame so let me know a price, by PM if you prefer, and I'll do some research and get back to you. Also what size is it?

Thanks.

size is 58cm c-t seat tube(classed as a 55 in the Principia catalogue), 55cm c-c top tube Looking for £325 including postage which after reading your subsequent pots looks to be outside your budget.
It is totally unmarked bar a scratch on the fork leg (a wheel slipped in the boot of my car and the cassette slid across it)
Principia made the very very best Aluminium frames, the ride is amazing and really does seem to launch you when you push through. Stiff but not uncompromising.
The other bits are also available.

http://farm6.staticflickr.com/5512/10424387655_054748ed7f_h.jpg