I wouldn’t have thought an expensive item would be a success on Kickstarter (better suited to low cost, high volume), but a quick search shows a couple of funded kickstarter bikes:
http://www.kickstarter.com/projects/874048428/the-viaje-bicycle-engineered-for-adventure?ref=search
http://www.kickstarter.com/projects/faradaybikes/faraday-porteur
This one has deposits as the reward, which my reading of the KS T&Cs isn’t legit:
You could ask for deposits and pitch a low total to gauge interest, then compare to how much angel funding you could get.