You will find the Minus 33 Marino Wool base layer very suitable to your purpose. As was pointed out, it manages dampness well and is warm when wet. It is very comfortable. It doesn't smell like synthetic base layers have a tendency to do after you wear them a few days.

I would avoid cotton fabric, as it gets wet and retains wetness easily. You said in the past you wore flannel shirts. Look for a wool shirt to exchange with the flannel shirt. Pendleton wool shirts are great but expensive. You can sometimes find them on-line used for cheap.

I like to wear a heavy wool vest over a wool shirt (which is itself over the layer of Minus 33 Marino Wool base layer). The vest provides a lot of freedom of movement and feels warm. One thing I believe about wool is that it has a wide temperature comfort range.

I also like to wear medium weight wool pants -- M-51 Army Surplus wool pants that can be found on-line pretty cheap.

When it is cold I wear a Cabela's Dry Plus insulated parka (actually an "anarak" -- a pull-over without a zipper) over all the other stuff. If I'm too cold with all that on, then I just don't go out hunting. I hunt at 11,000 feet elevation in SW Colorado in mid-October. Mornings are often 15 degrees, but can get colder. It you are moving around, of course, there is less of a problem staying warm. It is when you stop and sit down for an hour or more that the cold starts to creep in.