How to upgrade to Membership?

Hello,

I will move my site to buddypress and I am currently using wishlist member. I have been told by wishlist member support there is not good integration with buddypress.

I would like to know which steps should I follow to switch from wishlist to Membership?

Is there any script to capture all settings or it must be done manually?

Will I have to cancel my paid subscribers and ask them to subscribe again or is there any way to create each membership and seamlessly integrate it with my paypal account?

These are the questions I have right now, please include any additional info you consider important in this topic.

Thanks a lot for your help,
Luciano