"yes, as such, I've built most of my repertoire from the web/mainly DigiTrad, as well as visits to Newcastle Library"

These are not scholarly nor reliable sources to rely on, the same goes for alot of what's on the internet unless there's backup. You'd do well to find more resources for the songs to choose, if you're going to be so picky about what you sing & play.

Have you come to terms about the 2 shanties I've noted?

Barry