As someone who has designed and ordered small runs (20 units) of electronics complete with factory assembly soldering and casing, I can tell you no.
Hardware is expensive in a giant company. If you're making a CD player for Sony, with a team of engineers, a bit of R&D, where you have 1 shot to make the product correct and are forced to order 100k units to meet economy of scale requirements, then yes sure, but you're also not going to be financing this with Kickstarter.
Kickstarter is about kick-starting your business, not mass producing. If you are running a kickstart campaign with the aim of a large production run first go then you should really not be in the business, and this is something that will self correct itself anyway.
There are MANY successful kickstarted projects that have taken off with very modest funding requirements. HR? Are you joking? If you have a HR team with hiring requirements then you shouldn't be on kickstarter. If on the other hand you're talking about paying a contractor a one off fee for design then yes, that would be appropriate.
Sorry whichever way you try and spin it, for what they are looking at producing I would instantly say asking for $500k funding is so high that alone should be a clear indication of potential fraudulent intentions.