Yes, you can do them offline.
This is the very reason why i backup my settings folder every now and then.
If you want it, i can send you mine. I have most planes views set up, as well as convergences (usually pretty close in). Shoot me a PM with your mail and ill send them.
The biggest problem is your stick.cfg. You can either go and see if you find someone that has the same stick/rig as you and used similar settings. But im afraid the greater probabiliy is youll have to set it up new.
When you start the game, you have to redo the video settings anyway. Remember that if you want to use the 1024 textures youll have to download the highres pack.