Thanks for the compliments guys. Some of the older Pelikan demos are quite difficult to locate at albeit reasonable prices. I haven't picked up many of the recent M200 demo pens but you never can tell...
I just got my green demo M200 yesterday. It has an F nib. I filled it immediately with Herbin's Lie de The, a light brown with a greenish tinge, and have been using it in my journal. So happy!
I got it from http://www.deutschepens.com. (No affiliation, just a satisfied customer.)