Wheels and tires for a 74 Duster

I was looking for suggestion of size for some nice tall, thick wheels and tires for my 1974 Gold Duster.

the reason I am looking for Tall/Thick wheels and tires is because I live in a small town in Washington, because it is Washington it rains ALL THE TIME. not to mention all the unpaved roads leading everywhere. I want to have the best clearance without having my car look as though it ate a large truck.

Any Suggestions would be nice, and examples would be much appreciated.