[ig1]

Places like CEX have fixed prices for buying/selling phones, so you could just buy the phones from them and sell them back when you're done.

[gnok]

Unfortunately, I need access to 4 (or more) devices in each class for testing and buying/selling that many devices becomes a little expensive. Its also a lot more complex than I would like.

Thanks for the link anyhow! I'm pretty sure I'll be able to use them for a different project.