Ship,
You could always be a vendor at the Berkeley show. I know a few people

. This way you can justify the first trip and find another way to do the second trip. Rumage through your stuff and see if you have things to get rid of and maybe go in with a few friends that need to get rid of some stuff to make the trip worth your time. Just $35 for a 6' table. A good amount of custom plugs builders were there this year and more to come next year.