I'm in Yilan and also have several people who are interested in going. Are there still seats on the official bus? I'm guessing not if you posted this.
What route would you take, ie, would we have to meet in Taipei or could you make a stop in Yilan?
And more importantly, can I bring my surfboard with, will you be going round trip, and will the bus be around during spring scream for us to keep stuff in (sleep in)?