Kickstarter seems to be a bit of a crapshoot. I've seen nonsensical projects rack up tens of thousands of dollars and legitimate projects ending up with only a few hundred dollars in funding. Still, it's worth a shot. And you might be able to raise a years worth of income in a few weeks.
One advantage is that it might help provide an initial hit of publicity. I could be wrong, but you'll need serious publicity to make your project work. The question is, can you do it yourself or will you need a publicist?
A few years ago I went to a weekend seminar and learned something that might help you.
In the digital age corporations are desperately searching for new / unique approaches to reach potential customers. A few of the presenters at the event claimed to have sold thousands of books (that's tens of thousands of dollars) directly to corporations that also also paid them sizable speaking fees for addressing shareholder, sales, and employee events.
If you can attract large numbers of followers who are interested in what you’re doing it's possible to find a sponsor or sponsors willing to pay serious money for the exposure.
The challenge is to find a way to tie-in your project with potential sponsors. This takes a little ingenuity, but it's possible. For example, a guy who was writing a book on hip-hop told me he was working on a proposal to get a car manufacturer, Scion, to provide him with a vehicle because Scion was trying to reach the same niche market as he was.
Tourist bureaus interested in publicity might be willing to put up some money. Then there are the travel sites (Expedia, Priceline, etc.).
What about the manufacturer of the Mobility Scooter?
Think of yourselves as goodwill ambassadors.
Sit your friends down and start cranking out ideas and then set up a game plan to execute the ideas.
"Everything you want is just outside your comfort zone."
—Robert G. Allen