Hi Ali,
Answers for your questions:
1. Transfer Missing Elements: YES
With this step, new elements will create in the task container based on the method container elements and creates the binding b/w them. It is better to choose YES and after that, if you dont require the binding, you can delete it for respective elements.
2. YES, we need to follow the same procedure.
3. Basically production system is having the mandatory configurations like RFC destinations and Classify tasks are general, probably no other activities are required.
4. For this, I am also waiting for other folks reply.
Regards,
Murali Krishna.