John,
First, that was a great link to your gear - the pictures really explain your kit well!
You asked about the cycling raingear; my only comment is that no matter what I wore when I was stationed in your part of the country, I eventually got wet. If I was active outdoors and it was mizzling, drizzling, or raining, I eventually got wet-to-soaked. And eventually, when my activity level dropped, I had to deal with the soaking. So I'm not convinced that there is any reasonable uber-garment short of a dry suit that will for certain keep an active person dry for prolonged exposure. Blocking the wind is important and any sort of rain gear can do that. I think some folks make a mistake sizing raingear "fashionably" rather than loosely. Yes, it is an issue wearing crampons, but I don't think that's a problem here, eh? But after you're wet and when you slow down or stop, blocking the wind alone is not enough.
So I suggest using whatever raingear you like (keeping it loose) and extending your shelter capability - sooner or latter you may need to get under/in shelter and dry out, eat, rest, etc. The good news is that I found tarp type shelters (expedient or fabricated) to be very useful for that sort of thing out your way almost all of the time. (Oops - I'm assuming you're on the wet side, not the dry side). Maybe you could fit in a Tyvek tarp (or a silnylon if you want to spend the $)?
Thanks again for the links to your gear!
Tom