Antony. There is no such thing as beginners glue! All glues have their uses, and we all have our personal preferences.
Most of my boats are built with water resistant PVA, rapid epoxy and superglue. There is no right or wrong, some glues are better than others for certain jobs, and others unsuitable (PVA to stick plastic for instance).
Thin cyano is cheap from Poundland and Wilkinson's so gets my vote. Anything requiring gap filling means epoxy to me?
Someone who does planking would be better to advise on the suitability of contact adhesive, but I see nothing wrong with it, only that you only get one chance to stick it in the right place!
Pins…are they meant to be viewed as part of the build or simply to hold stuff in place? I would have thought the pins stayed there only being 7mm. Dressmakers pins are generally used for light duty holding thinner planks and so on in place.
Ashley