Second, Lieberman only has to get 7,500 signatures to be on the ballot as an Indy, not 30,000+.
Very true, I didn't think the requirment was so high. What a lot of people fail to realize about Lieberman in the independent scenario is that he wouldn't be just any old independent candidate. Unlike the average independent candidate Lieberman has an entire brand of Democrat on his side that will be behind him until the end. I would give him 2 days to collect the signatures he needs to make the ballot.
If the DSCC helps him run as an Independent, all hell will break loose.