Large Acrylic Sheet (Brunswick BN3)

Hello I am a student studying fine art and for my final major piece I need quite a large Sheet of Acrylic (perspex) 1.5m by 2.2meters. this can be one piece or two pieces. I use all repurposed plastics in my art, so it would ideally be great if this came from an office or shop refit, or anywhere really just so as it is not thrown away! so that I can give it a new life within my art project. If anyone can donate/ freegle it to me that would be amazing! 🥰