Wouter
I dug up the original boat review (1988) - you are quite correct (my memory is at fault) the boat is 16 feet 6 inches - I got most correct - it is the same length as the Hobie 16 and the hulls come out of the 5.2 mold.
If this means that it qualifies as an F16 then that makes it a great entry level boat - you should be able to pick an older one up in Australia for around AUS$4K to AUS$5K.
As far as the bridle goes - the forestay tangs are on the outside face of the two hulls (ie same side as sidestay tangs)meaning that the strop would have to cross the hulls which could cause damage and increase loads.
Cheers
James