Welcome to Geekhack!
I'm not sure there are any minimum requirements to ask for an artisan thread, although if you are a new-comer to the forum people might be a bit wary for a while. If you post around and make yourself known, you could make some contacts who could help you with this (if you need help).
Otherwise you can always PM a mod - their names generally appear in a different colour at the bottom of the main GH page.
And would you believe it - for the second time I can remember, there are no mods online!