Hi Purcho,
The first kite in the pictures is a Cabrinha C111 (See one eleven). They were released in 2002 and were a convertible 2-line/4-Line. The picture shows that some of the bridling is missing, more specifically, the cross bridle. The other bridles seem to be on the floor. It looks as though someone has tried to convert it to a 4-Line but only got half way through the conversion.
The C111 was a reasonable school kite. It flew OK for it's day but would be a shocker by todays standards. They had very little depower and were heavy and slow turning, even as a 4-line. It's basically is only worth nostalgic value.
The other kite is a Cabrinha CO2, it was a mid aspect ratio 4-Line. A pretty average kite, again, OK in it's day but a veritable shocker by todays standards.
The board is a Cabrinha Surface to Air S2A. It looks to me like about a 5'6". I used them in the school I managed in Hawaii, it should be a quad fin, two big fins at the rear and two much smaller front fins. The board is a press moulded very rigid and very strong board with quite sharp rails (from memory).
It may be OK to ride but back in those days those boards weren't made for surf, they were for going upwind, a pretty rough ride and unforgiving. The harnesses are also from around the same period and may be OK, but again, late model gear will eclipse it for comfort and performance.
If the kites are in good nick, I'd keep them for nostalgia, they may be worth something some day. Already I would say they have higher nostalgic value than value as a kite and board to ride.
Quite a find! Hang em up in your bar!
Good winds,