Shannon at KJN taren point, he has done the exact same repair on a mates Prowave recently. It will cost you around $200-300. He also did a similar repair on one of my windsurfers that was cracked rail to rail.
Tim at Breakers is the only guy to go to in my opinion. He just did a repair on my wave board and I can't find it now that Tim has done his magic. Tim colour matches using some sort of computer system and he does all of the repairs for the major companies.