Spoiler leak

yook my car through the c at wash and it ended up leaking. Believe it was exacerbated by the fact the car was rear ended at some point in its life. Anyway... When I was tightening down the spoiler one of the bolts on the left outside edge sheered off. Sadly I cannot simply replace the bolt because Toyota moulded it into the spoiler itself. So my question is where can I find a replacement spoiler cheap that has the 5 bolts moulded into the spoiler itself. I've checked eBay and the scrap yards here do not have anything. Any help will be appreciated.