I'm thinking that a loan could cover the cost of completing the project, and a second kickstarter done now that R & D is done to make a profit (and pay back the loan). Second kickstarter would have a firm reasonable ship date, and a hoped for ship date. Firm ship date would be a refund of money gained after Kickstarter (so 80% or whatever it is). The risks would be obtaining parts, everything else has already been done. The fact that the first kickstarter has finished would make it "safe" for kickstarter investors to buy in.