Well, Smaughazard, many thanks for asking for me by name. However, those who have already responded are as qualified as I to give you an answer!

I would certainly opt for Oatmeal hose with a beige, or similar, shirt/top. Black hose are far too formal if you're aiming for the 'casual' look, and you're right about green hose too.

That is certainly a fine-looking belt - but it dominates! It might be great for re-enactment events (or even weight-lifting!!), but I don't personally think it is suitable for everyday wear. I'll probably be shouted down now, but it really is too 'strong' for your kilt - in my 'umble opinion!