All the coaches for GW07 to GW10 are already at Wabtec and have been since the spring, this will be for GW11 and assorted spares.
Thank you both!Should you want the ins and outs of these sets, there is a thread here:-
https://www.railforums.co.uk/threads/gwr-to-operate-short-hstgti-sets.145727/page-50