You get to meet Datgirl. That in itself makes the whole event worthwhile :D
I've never done Coastal Classic (it's always exam time, grr), but if it's anything like the other touring road events I'd say that the entry fees would be less than $100, and most of us will fit in the sub-2L pre-84 class. I'm most definately doing it this year, in the PhatDat (my unofficial name for Craig's Datsun1200) if Hal is not ready/running, in Hal otherwise...
Safety requirements you and your nav will need a helmet, at least 2kg of fire extinguisher and a first aid kit. I think that's all you need...
GAH! ive only got a 0.9kg fire extinguisher...what if I have more than one?