I'm hoping others will chime in. I'm finding in the east, Merino wool takes a long time to dry, thin or not. I'd suggest try it out - take it for a hike or workout, get sweaty and see how long it takes to dry and more importantly how it feels. I get cold with sweaty Merino next to my skin because it takes a while to dry out. I'd be curious what you find. All of this makes for good data points.

Adversity doesn't build character, it reveals it.