First off, welcome aboard from western North Carolina, the greatest place on Earth!

I have no experience with PV kilts, so I can't comment on them. However, if you're worried about excessive heat in the summer, you might want to investigate a 4-yard box-pleated kilt.
Yes, some of us do wear sandals with our kilts. And t-shirts. (Shhhh, don't tell Jock!)
You can probably find tartan MacDonald of Clanranald available on the 'web, and have a kiltmaker here make up a beautiful kilt from it. In fact, some of the kiltmakers might know exactly where to find it.