Ashley – I saw your comment about multiple threads, good point. As newbie to forums I was unsure about different aspects to my questions and build – sorry.
Ray – yes, cockpits covered by cut-outs from cd cases. Very watertight – I held her under 10cm of water for 5 minutes timed – no tiny bubbles at all so I think ok. Glued in place by superglue then three coats of yacht varnish over edges. The 5 wooden caps (two forward, two middle, one large aft) cover drill outs of wood too – empty watertight spaces slightly more buoyant than the wood. I weighed the removed drilling and sawdust to get an approximate weight to see that it covered the extra weight I was adding.
Colin – I asked as I did not want to go bragging about my build unjustifiably – I want to show off to friends without getting knocked for it – first boat I have ever built, and will be the first boat I ever sailed. If I canvassed your opinions first I can then say, "Well, that's what other builders from model boats magazine think!" Ha.
Chris – neighbours and friends mostly – but I am hopefully attending the Sedgemoor Model Boat Club meetup this Sunday morning coming, for free sailing, and hope to earn some brownie points for my effort.
thanks everyone.