Longwinded- your quotes about what I paid, Quick signs in Osborne Park- hes done a few sail jobs for me, logo stickers as well.
the rules are here
http://www.windsurfing.org.au/, but it depends what you want to do, most people just do enough to satisfy the Lancelin Ocean Classic entry rules.
www.lancelinoceanclassic.com.au/The numbers for the rules make them pretty big, so I went for best fit on my most used sail. (but my prettiest sail is the "illegal" black numbers on clear)
last option: Sailmaker and some black stickyback, and a night or 6 in front of the telly!