D65 in the north is something I only have one source on, but it's literally the only thing I've seen a number for that road on, though it's clearly a D road on various sources, it fits the numbering system pretty well, so I'd suggest a field trip is only worth it if needed.
There's not really GSV. Exit numbers might be something worth looking for. Anything you notice doesn't match our data would be nice to have a report for. I'm sure you will be thorough to clinch as much as possible due to the relatively little there is to clinch (though I've added points for all E roads I could find and the local roads in the north too, so can do tier 5) and the awkwardness to get to Asian EU.
Bon voyage!