The list of Northern Hamster Club shows can be found here :
Upcoming Shows - Hamster Shows
The 2015 shows will be up shortly with the first being in March at Lymm.
There are however none really near you or in Scotland. The closest is likely Nothallerton or Topcliffe or maybe the National show at Harrogate. Some of the outdoor shows in summer make a nice day out so maybe you could plan for one of those?