Hi,gay! I can give you some advice!
1.Do you have ability to programming a key youself?
2.If you know someone(not Toyota Dealership they cost expensive) who can programming key(all key lost),and he will give you a low cost.
if you want to know more about key programmer(all key lost):http://blog.uobd2.net/which-better-handheld-car-key-programmer-for-all-makes/