I really like the outfit in the photos shown in the original post.

It could have been plucked right out of the third quarter of the 19th century, save for the style of shirt and necktie.

At that time long hair sporrans were worn in all sorts of Highland Dress (the modern "evening" and "day" sporrans having not yet evolved) and it was quite common to wear tartan hose with tweed day jackets (though selfcoloured grey hose were common also).