Thanks all. I may later pick up a pair of the Patagonia silk weights that Bob described, they do sound perfect. But for now, I'm making a Cabela's wish list for Christmas, and they don't have anything like that. I did put a pair of the zip-off pant/shorts things on there. I have a pair, but perhaps it's just the cut and fabric. Rather loose around the bottoms, so there's a lot of material and putting them under socks doesn't work well. And they ride up if I don't.
I like stirrups, and they do make wader pants with stirrups, but everything I've found is fleece. I have a pair and they're great in cool weather. But fleece isn't ideal in the summer, especially if a lot of hiking is on the ticket, which it often is once I get into June and July.
The zip-off pants/shorts would be PERFECT if they made them with stirrups. My backup option is the under-armor with shorts overtop. That would work. It'd look funny, but no inappropriate. Just a little "European".
Brookieaddict, let me guess, the 18" brown is to scale. AmIright?