I've used a camo Cabela's Gortex outfit (pant with suspenders, and jacket with hood) during rainy days on the slopes for multiple years. I love it, it works great. There's no gator in the pant, but it's not needed. The pant legs are wide enough to fit over the boots and not bind. Go with the suspenders, they keep the leg bottoms from dragging, and the crotch up where it belongs (guards against blow outs). Get em big enough so movement is non restricted, and you have plenty of room to layer if needed, and you'll be golden.
I used them a lot when I was in the east. Now that I'm in Colorado they collect dust during the winter.