What is a "reasonable price" to you? Breeders can costs hundreds maybe thousands, but you can also buy fry as cheap as $0.25. There are a lot of vendors online. You might be able to source locally as well. I'm sure someone on the forum would send you some if you work something out with them.

Nevada
Permit is required for tilapia- all species.
http://www.ndow.org/law/licenses/pdf/ap ... tation.pdf