WTB Ultegra Rear Mech = 11 Speed 6870 Electronic

Hi Team I need to replace the rear Ultegra Derailleur on my brides QR 5 - that she torqued off in a race this week…LOL

Model number 6870 - I have the new harness wire that also broke so only need the derailleur ASAP as she has a race soon. New or used as long as it is straight please.
PS if you only have a dura ace will take that
Thanks

Have one now - many thanks
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