Like I mentioned earlier Rotacak, it wouldn't hurt to open a Patreon account and put up some basic rewards. That way, at least the people who are willing to contribute financially on a monthly basis can be free to do so. It might not even add up to that much, but at least it will help.
Easy things that can be done later like putting names in a special section of the credits, exclusive weapon/armor skins, forum badges, perhaps even an autographed poster and/or a 'season pass' that gives free access to some/all AAA Games Exchange content for the higher tiers. All are good rewards that don't require much in terms of immediate effort or investment.
My means are not unlimited, but I would be willing to chip in a couple of dollars every month if it would help.