Sell 1/2 the plane to one other partner (or 1/3 each to two more
partners). Bank that money and use it to pay your costs. When your
kitty runs out, sell your remaining share to yet another partner and
you are out of the plane entirely.

You will probably need a lawyer to set up the partnership, but it
shouldn't be too costly.

If you are really struggling to make ends meet, you should probably
sell the plane. Aircraft ownership is expensive and pretty much a
luxury.