Yoda size reference?

I'd like to start on a 1:1 scale Yoda soon but I'm wondering if anyone has or knows where to find sizes for him such as hight, head size, eye size and so on. I'd like to sculpt it as accurate as possible. I've used the search function but didn't come up with much regarding size.

According to Wookieepedia, he's .66 meters tall. I can try scrounging up my essential guide to characters tomorrow to see if it gives any better idea.