Do you sew? I made a 10x10 silnylon tarp for about $60. I used paracord loops instead of grommets. Mine is just square since it's purpose is to be a tarp, not a shelter, but it's easy to design something fancier.
βIn a time of deceit telling the truth is a revolutionary act.β β George Orwell
It's not over when you lose. It's over when you quit.