You could still do redshirts. You can even open it up to the Kickstarter folks. "Want to be a redshirt? Join our forums and sign up." Maybe a little more than that (ask for the kickstarter email address to verify that they've pledged, ask for a token donation just to put a barrier on entry that keeps people from going "free game!" e.g. a dollar via paypal), but you get the idea.
Also, if you need help dealing with the Kickstarter side of thing (by which I mean, handling all the PMs and emails) I would be more than happy to set aside a few hours and pitch in. It's something I enjoyed doing back for V!C! despite being the introverted antisocial curmudgeon that I am. It's weird, what can I say.