Hi, I've restored a 1963 boat (sail number 766) to racing condition, including bermudan rig and centre main....
(see
http://www.asyc.org.uk/index.php?option ... &Itemid=48). It was a lot of work, so good luck.
As far as I can see the only differnce between a Mk 1 boat and a more recent one (apart from the rig obviously) is that Mk1's had only a single floor batten on each side, and triangular knees to stiffen the gunwale below the rowlock positions. Also, the transom drains were small holes instead of large slots.
I have the original 1963 building and sailing instructions (but not the plans) which I got from the previous owner, which I could scan for you if you are interested. Probably got some of the original fittings somewhere as well.
Was it worth the effort of restoring an ancient boat to race spec? Well, logically, probably not. Its a bit scabby in places but it seems to be a reasonably fast hull if a little heavy. Main thing though is my 10 year old daughter is very proud of it, and there is a sort of fun in racing it against modern plastic boats.
Information on sail numbers and years is listed on the website (Buying/Advice)
Mike