We're using a couple new technologies (EventMachine, Cassandra) in our latest project and it'd be worth a lot if someone can double check our assumptions/architecture.
Via searching github forks of these projects or searching in Google for related blog posts, etc. you might find others who are actively involved that you could contact.
If you are that unsure of your code though, perhaps you should contract/hire someone a little more surefooted to work longer than a few hours? There are a number of Ruby/Rails contracting agencies, which is where I'd start. Maybe places like:
http://www.mirrorplacement.com/
Or find someone in: http://workingwithrails.com/
Just search- you should find a number of them.
But: each project has different policies, and may even not have a policy if it's that new and no one has asked your question before. So write a polite email to the list asking if it is OK to post a help wanted job ad, and if yes, what are the guidelines. Do NOT include your job ad in this question email. If you get the all clear, fire away.