I guess a lot depends on the size of your network and how generous they monetize, and how much attention you can get for the kickstarter and how sticky the idea is to people who hear about it. Given that all those are essentially unknowns if this is your first crowdfunding project, I think that starting small isn't a bad idea.
I think going sub $10,000 sounds reasonable. Specifically, I'm throwing in my vote for subversive web sitcom. Of course, choose something you are really eager to do, not just something you think will get the money.
Oh, and also, take the time to plan your reward tiers well. They're sort of difficult to edit/change/update once the thing is actually underway I think.