I got her for 22 bucks at e-bay!!! But now she is there... and the lines showing the sheet joints are upsidedown

What can I do about this to get to my prototype Mikojan-Gurewitsch E-155P (Je-155P) ???
Here the video that inspirited me:
https://www.youtube.com/watch?v=dlMjNMQ8NIY
Yours,
GreyOrk