APPROVAL PENDING
This sounds like a pretty fun idea, and the restriction that transferring means her body gets left behind is a really interesting. At the same time, you don't need to have AS MANY restrictions as you do.
So my counter your idea is that Winry cannot access private/encrypted/secured data or transmissions, but she can write up data and send it (such as sending a text to someone's communicator, but she has to really concentrate to create said data). She doesn't have to be overloaded by the information immediately, but prolonged time in the network (like more than a few hours) will cause this and leave her feeling very mentally drained when she gets back into her body.