I would suggest getting the figures to $666 as an add-on first THEN think of what to do with the rest of the money.
Codex did it. First they had a 1k goal, then it was stretched to 2.5k with the codex versus rpgwatch idea.
Alternatively, we could let the developers give us an idea what to do with the excess money like they did with codex. You never know, everyone in the fund might be named after some weresheeps!