Sword Belts are something that interests me, Ive not been happy with any of the commercial offerings available for the last 30 some years and the custom ones, well Ive yet to find the perfect one. The biggest stumbling block is that there is not an actual Scottish one from the 18th Century that I know of. Thus everything is a best guess.

Finding a sword belt that will both support the sword, allow for a proper draw of the sword and not trip you up while walking and marching, its a unicorn for me!

I wish I had the perfect answer for your question, but I dont.