I was so looking forward to seeing these two design proposals fleshed out a little more, as they both look innovative, fresh and new - and towards being better boats for junketting than the Golden Bay.
But I can see the point, and the reasonableness of not wanting to pour creative effort into oblivion, or trying to second guess what might be some mythical "ideal boat".
And here's another thing - we are just talking about a junket boat, meaning something approaching one-design hull with free-for-all junk rig. In fact there are plenty of second hand sail boats for sale these days, most of them with tired pointy rigs. Any of them would do at a pinch - these days few boats are individuals, they nearly always belong to some "class" or other - its just a matter of organising a little collection of the same type. It is almost wasteful to start a new build, when there are existing boats going begging. I see trailer boats, of this class or that, by the half dozen, just about every day on Trademe. Unfortunately there are so many classes it is hard to see more than one of anything on any one day - but over a six month period, you can.
Here's an example: the very small town of Katikati (where I grew up) for some magic reason seems to have, over a period of time, built up a fleet of second-hand Farr 6000 trailer yachts - and once a week they are able to use them for class racing. It just happened because someone got the idea. There's actually six of them that live here, and only one "odd one out".

Something like that, in one locality or region, is all it takes to have a fleet of junket boats. I'm not interested in racing - but very excited at the thought of a little fleet of identical junks (with different rigs).
These plastic "trailer-sailers", of various brands, were wildly popular in the '70s and '80s, and second-hand ones for sale are numerous - you sometimes see them for sale at a very cheap price - but they are probably all too big as a "second boat". I'd still look towards the car topper or very light trailer option - with the ability to kip down for the night (just). Apart from that, just about any type would do. Dave D suggested the Wayfarer - we don't have them here, but I believe they are pretty common in the UK. Again, maybe a smidgeon too big? Anyway, people will know what's around in their own locality.
Finding we have possibly three Golden Bays here in Northland might do it, with a bit of luck. Unfortunately they were never mass-produced and the chances of finding another one are slim. Still, you've got to make do with what there is.
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I must say, Arne has succeeded in swinging the momentum back to 8'. I might be willing to build an 8-footer. I have to admit I've got too many other commitments to consider building a junket boat and sadly have to understand the reluctance of David and Arne to go beyond the concept stage of a design. (Genuine sigh..)
Hey, can I interest anyone north of the Waikato to build a Welsford Golden Bay? Does anyone know of another one which might be for sale?