When I worked at a rental store for many years, we had a John Deere 3033, I think. Anyway it was a CUT that we rented A LOT. As you can imagine, the hood on it did get broken in the course of the time that we rented it. Since they are so expensive and it was a rental machine, we used zip ties to stitch it together. We just drilled two holes opposite each other about 1/2" back from the crack and threaded a zip tie and pulled it tight. We spaced the "stitches" about an inch apart along the crack. It was surprising how well that temporary fix held up. We rented it like that for a few years. I know I've seen green zip ties, so maybe you could live with it like that until you found a used one (highly unlikely) or decided $1800 really isn't that bad (also unlikely).