Try AIRCRAFT at
http://www.aircraft-world.com/shopexd.asp?id=2032
They've got 'em at $50.95 plus postage. Even thought they are in Japan, postage to the US is extremely cheap and delivery takes about 4 days from payment.
They take PAYPAL.
I get a lot of my elect R/C stuff from them. Service is great and they are very reliable.