By "the rigging" i assume you mean halyards and mast stays? (I'm a laser sailor and know not of this "rigging").
It is 3 inches with the hulls flat.
Hulls are externally are excellent - one or two chips in the gel on the bows but otherwise excellent.
The only cracks on the hulls I could find were around the "tubes" that the aluminium bits that attach the hulls to each other. This looked to me like a crack in the gell coat.
blocks are "race pack" (what is this?) and were removed.
Before he laid it up the guy was serious - going round the country to races - so it should all be good.
(also comes with Dart 15 sail he used for playing about in high winds)
remember this boat is for fun and remembering the good old days when I used to crew a Dart as a teenager. The Laser for serious racing so I'm not too worried about ultimate performance, but I would be about mast falling down!

Cheers