I have a few questions about using a Nextel Walkie-Talkie in Mexico. I have a Nextel Walkie-Talkie with the unlimited international walkie-talkie feature added. I am able to talk with my friends in Mexico with no trouble. I love it!

One of my friends in Mexico does not have a Nextel walkie-talkie. I want her to have one. What is the best way to do this? The most affordable way?

I think my options are:
1. I go to a Nextel store in USA and establish new service (just like I already have for my phone). Then FedEx her the phone. She sends me money to pay the bill or pays it there (somehow).

2. She goes to a Nextel store in Mexico and establishes her own service and pays her bill there. Not sure if there are Nextel shops in Mexico or how that would work.

3. Are there any other options? I have several old Nextel radios lying around my apartment. I could send her one of these. Would that help matters at all? Would it save any money?

Thank you!