I tried finding an NOR for the 2005 event, but gave up, since the information seems to be scattered over at least three different sites and the EHCA site doesn't even have results.
Apparently, the event was organized by a sports promoter (Prosail), which may explain some of the disorganization.
In reading one of the daily reports from the IHCA web site (
here), it appears that just the sails and battens were supplied.
In looking at similar events, the entry fees for double handed boats were about 150 euros.
Sounds like you'll need to wait for the NOR to come out to find out exactly how much it'll cost.