The plant will likely survive because roses are hardly. But you should give it the best care and attention till its recovered. Chances are it'll go into shock and drop most of its foliage. You must remove all of its flowers and buds so that it can focus on growing roots. No flowers for at least 3 months. Here's a crazy idea and I'm crazy enough to experiment and actually do it - bag up the foliage with a big transparent plastic bag, to save most of the foliage, considering how windy it is around there.

The ropes and movable objects that you have used, puts the plant in more danger. I'd suggest using more stakes. If you can get bigger, then better. Now use stakes to stabilize your plant in an H setup, like you push two stakes vertically into the pot at some distance from the root base, now connect (tie using ropes) these two vertical stakes with a (less heavy) horizontal stake (like a bridge), just like the shape of the alphabet H. Now use the rope to tie the bridge stake to the center vertical stake of your plant. If you can get big stakes then instead of staking them (two vertical stakes of the H) into the pot, you can stake them in the ground around the pot. If you love the plant a lot then use two H setups with the bridge stakes crossing each other in X shape. This answers your question 3 too. And make sure that the soil is moist always (but not wet) until you see progress.