You organise it for when it's most convenient. If that is the 23rd, maybe we can meet you at one of the stopping points as we will be over that way. We'll be in the car, as its a posh wedding and I won't be allowed to turn up wrinkled.
EDIT : Your route suggests The Sun Inn, Harrogate. If you are going there we will definitely see you guys on 23rd, we are staying in Harrogate!