New to all this... First Bike, 1969 CL350

Hey there everybody, I'm new to the site, and to the hobby as a whole. Been looking at getting a bike for the last couple months with the Summer quickly approaching. I found this one via craigslist only about an hour away from me so I made the move and went and picked her up. She's a 1969 CL350 that's stock minus a few little things like the CB exhaust, and the cheap clubmans that were just put on recently. She's got 3300 miles on her and was last registered in 1976! She fires right up with the push button start and everything seems to work and run pretty fairly. Tires should be here tomorrow along with some new brake shoes, carb kits, and some new points in the next week or so. I plan on doing a few little "cafe-ish" mods to her eventually, but plan on just riding her through the summer essentially as is, and then tearing her down this winter.

So, thats where you guys come in... haha.
Being my first bike, i've already got the usually "newbie" questions, and I'm sure will have tons along the way...

My first being fork tube diameter. I want to start the rebuild at the front. I've already ordered all new cables, some simple levers and perches, and a throttle assembly that I've heard works with stock throttle cable, to clean the front end up. I want to swap the clubmans in favor of some nice woodcraft clip-ons. But thus far, haven't found a definite answer as to sizing... I've seen the list/chart that is floating around the web that lists 72-73 CL350s but not the 1969. Are the 1969 CL's the same as CB's or do they differ like is common for the other years. I've kind of narrowed it down to either 31mm or 33mm from my readings on the web, but I am still unsure.

-So, can anyone confirm what size clip-ons I need for a 1969 CL?

I look forward to sharing my progress, and learning from the boards! Seems like an addicting hobby that I can't wait to get further into!