This story sounds a lot like mine. I stuck to EMF for 6 months. I was able to get her mailing address and phone, but only had 2 webcam meetings before going to meet her. she sent me some good non-professional pictures, one included a picture of a gift I mailed her. I received some cut/paste EMF's from websites containing info we were discussing (including the weaver/cow herd story).
Nina was very much real, but it did turn out that a lot of our EMF's were manufactured by the agency. We were unable to get past EMF's until we met.
If I knew then what I know now, I would have insisted on more direct contact, saved myself a fortune, and hopefully not blown my chances of meeting her in the end. I think the fact that you are concerned is justified. Mention your concerns to her (or the translator). Just be diplomatic about it. I chalked the EMF cost up to an investment and in that regard, I received a huge profit.
Maxx will tell you that you better get your ass in gear and go to China. Soon. I would agree. Until you do, you can't really blame her for treating you any different than the other possible men that could be writing her. Until you've met, you are pretty much a penpal. Once you meet you stand out from the crowd.
Then the work really begins.