Yeah, why not. I'm a sucker for FMV-games. If I were you I'd make it more obvious on the Kickstarter page that it's for the PC and Mac too. Obviously I might be wrong, but I suspect most of the people who would consider backing it are computer gamers. Remember you're trying to attract gamers here, not commercial investors.
Also, if you own the rights to these old games....
www.gog.com ?
