Generally, when someone has that extensive of a travel schedule, I assume they are legit, but I can find zero reviews of her in her home city or anywhere else. The rate isn’t bad at all if she is legit, but the deposit would give me pause. Please report back if you find out for yourself.
I've not seen her but the overall quality of the bio & general vibe of her ad lends me to think it's legit. Could probably ask for a video chat to help calm your nerves , since she is asking for background stuff she'd probably ask for it anyway.