Composting head

Starting to build my own composting head for the boat. Easy enough to buy one, but they are upwards of $1000, if I include shipping. I had some less than optimal 34 oz. triax fiberglass in stock so cut three layers of that and wrapped them around a bin to shape the front of the head. Then I'll use plywood sides, bottom, and top. I have some composite (thin luan and foam) I could use for the top or bottom to save a bit more weight. Here's progress so far: