I'd try Dynamo Dresden over St Petersburg, because Dresden are in Germany and thus have the potential to actually become a big club faster due to TV revenues etc. Also, Dresden have an epic history:
# DDR-Oberliga (East-Germany): 8
* Champions 1953, 1971, 1973, 1976, 1977, 1978, 1989, 1990
I still want to try them one day.
Also, about the swapping of positions, I don't really like it. I tried it several times with Gervinho and Ashley Young but it didn't really work out, I found them to be more effective just on their natural positions.
I might do that one, sounds fun.