I found one in Surrey. Kennedy Heights Animal and Bird Hospital. She will be spaying my piggies soon. She says she has done a few before but less than 10 I think. This hospital is just across the Alex Fraser bridge and may be too far for you?? Have you found some one yet?
Langley animal clinic is where I go. They have I think 2 doctors that are able to work with small animals and rodents who work at the clinic, and they won't let you make an appointment unless there is a small animal vet on-duty. They do treat large animals as well, though, they aren't an exotics vet specifically.
It's pretty reasonable too, $40 for a visit, and then extra costs for medications that the pig may need. I was expecting more when I went.