Those shooting shirts sound perfect. Acrylic is fine. Carhartt makes some of their hats out of acrylic, and I use one on the trail. I want to say that Thorlo socks are acrylic too.

Gloves... I use a light fleece pair from Columbia. Nothing fancy. I find that by simply keeping my hands warm, that I feel warmer all over. Gloves also come in handy at night for sleeping if you are pushing the limits of the rating on your sleeping bag. Some superultralight hikers use a pair of socks over their hands. (Not my idea of fun!)
I always forget and make it more complicated than it needs to's just walking.