In all honesty: the more I think about it, the more I just can't see how this could have possibly worked out. If you think about the audience you're going for, it's so specific and narrow, that six backers is actually not a bad result. I mean, of all the WC fans, most are not really active any more. Of the ones that are active, not everyone visits the CIC. The polls ran by the CIC get votes in the hundreds, even though voting usually goes on for a month or more. So, that's the number of people your Kickstarter was actually reaching. But of those people, most would not be interested in a non-digital RPG. Of the ones that were interested, not all would be willing to contribute money, and of the ones willing to contribute money to a Kickstarter project, not all would actually have money to contribute (as you can see by example of your own situation - would
you contribute to this Kickstarter?
). And of the ones willing and able to contribute, some might still consider this particular project as an unnecessary luxury. I mean, a cover done by Denis Loubet is an awesome thing to have... but it doesn't improve your game in any way at all.
So, at the end of the day... six backers is pretty good. $400 is pretty good. Incidentally, your backers are quite generous, and you only would have needed 25 in total to fund the whole thing.
I wish I could offer some sensible advice for the future, rather than just an analysis of why this seemed pretty impossible to achieve, but I really don't know what you could really do. I suppose ultimately it comes down to this: get more people playing the game. They're your audience, after all, and your potential bckers.