Looking for good clemitis seeds

I've never planted Clemitis, so there is a whole bunch I don't know.
I would love to get some seeds from someone, but have none to trade, so I am glad to pay for them. I'm still scared of my seeds since I'm new at this, so don't want to send out bad seeds.

If anyone has them, please let me know and how much they will be.

I also need to know when to plant them. I am in zone 8. If I put them out now will they come back next year.