Hopefully will be on weight but might be 1-2 kilos over, depends on what rig is on it. The hulls are in the ball-park of the weight range.

Lots of problems, no major ones. Do a search for my posts on this forum to read up on these problems further. You're gonna have to be prepared to problem solve on-the-fly when building a boat.

Deck is on, it was a simple, flat deck glued on with cured glass on the underside held down with weights. When the glue had cured, a glass skin was applied to the outside from gunwale to gunwale which nicely accounted for the glass deck join too. I was concerned it would look crap but it was very simple and it has come out really well.

Be prepared to buy a good grinder and plenty of sperm suits (I don't know what their real name is, they're just white disposable overalls.).