Yeah it is definitely going to be windy and hilly throughout. I think the mellowest road will be 128. Also some of the roads in te foothills east on 101 would be pretty mellow also. I love windy and hilly - maybe it will grow on you as well.

We did the 10 mile climb between Boonville and Ukiah on our 200k. That's a pretty mild climb - though the other direction would be really tough.