The situation with Wrightbus, if it does collapse completely, will give headaches to First all over, not just in the west of England, should any vehicles need repairs that they would normally go back to Ireland for. The mechanics at the Bristol depots will have difficulty with the StreetDecks for the 70, 71 and 90 while Wells will have trouble getting work done on the StreetDecks still in use for the 376 (as if they don't have enough problems with those ones already!) if they are on integral chassis.
IMO Wrights should not have given up the Volvo partnership and I don't think the design of the StreetDeck will have done them many favours either.
Dave