It's great news that Spa have finally moved premises, if nothing else but for the benefit of the staff, therefore hopefully having a better and easier working environment and the whole picture being more relaxed and this filtering to the customers.
To the OP, I cannot understand why you would not want to travel to Spa. It's one day to do it. You'd spend half a day going to a reasonably local LBS anyway by the time the bike is sorted.
The cost is irrelevant as the bike is discounted below the cost of your LBS's anyway so the net effect is it's cheaper even with the cost of the train ticket.
Why don't you take the train, book a B&B for the night, get your bike sorted, then go for a ride. Spa is on the doorstep of some of the most beautiful countryside in the UK. Pop back to Spa with any small issues to be tweaked if you have any the following day, nice lunch in Harrogate and the train home. All paid for and still cash in your pocket from the lower cost of the bike?
Internet isn't everything you know
