Hi, If you decide to fix it i recommend using http://www.selleys.co.nz/sealants/silicone/glass/. Keep an eye out on TM for a peace of glass to fix it. You can cut plate glass to size its not hard. A glass cutter is about $20 - $25 from a glazier and they probably show you how to make a few cuts. I also watched youtube there was some good tips etc on there.