The video is fantasic. I have laid track by hand like this myself; 3:37 is my favorite part - torching holes for joint bars. https://www.flickr.com/gp/benmesander/S7D882 https://www.flickr.com/gp/benmesander/xk9v9n
Kev, Wow, some really nice modeling! You really do your homework. That video is very interesting. When I was a kid I knew a man who had fought in that war. Archer Transfers here in the States has garden scale rivets as well as armor rivets. https://www.archertransfers.com/SurfaceDetailsGscale.html There is someone doing 0n30 WWI layouts in another site. Corps of Canadian Railway Troops – Europe 1918 You guys might be able to share some info. Scott