WTB: 56cm Road / CX frameset. CAAD10/12 etc

My system six is without a rear derailleur and my Scott has cracked at the headtube. Taking the opportunity to clear out the basement and look for something new.
I'm looking for a frameset which is roughly 56cm long. Seattube doesn't matter so much.
Aluminium or carbon preferably, disc brakes would be nice as would tyre clearance for 30c but neither is essential.
A caad 10 or 12 disc would be ideal but open to seeing what's around at the moment.
Budget of 2/300 probably

frame only 150€
have forks to go with

only 250km ridden

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Just buy this: https://www.canyon.com/en-gb/factory-outlet/#category=road-framesets&id=21628

And put the 6800/9000 mix I am selling ;)
https://www.lfgss.com/conversations/302995/

Looks good. Only a M though and anyway I'm moving towards just having one bike which is my steel Genesis.

M is perfect for you, 567 (plus 16mm Acros headset) stack 391 reach. If your system six is anything to go by you can put a 120 -10 or -17 on this and be comfy.

Well anyway, I've got a frame that will do for now and I won't be spending 400 quid when it doesn't do anything new for me. Won't take bigger tyres than I've got now, doesn't have discs. It'd just be a waste of money for me at the moment.

fair, sigma sold out on their stock of CAAD12 discs? They were sub £400 new.

They have. I was ready to pull the trigger but couldn't afford until it was too late. I'll just wait for them to start popping up second hand in a year