any clear Perspex that they don’t need (Cowden TN8)

I need a piece of Perspex approx 40 cm x 50 cm. I want to turn an old trunk that I got from Freegle and want to turn it into a museum like drawer to exhibit students work in. I want to make a clear top so people can’t touch the artwork. Please let me know if you can help me. I also need a pair of hair pin legs to attach at the bottom of the trunk if anyone has a spare pair please?