Update with some recent roadbuilding I've done, the coastal road from kiddo's landing to roseguard is not technically a highway, but useful enough to mention on the map I think. Tunnel detour was necessary because of an abandoned coastal deed.
I'd like to buy Dukerain, pm me ingame (Mortomes) or on the forum for a pickup time. Will be able to pick up at pretty much any time for the rest of the weekend.