Short answer : Its depends.
Longer answer : I didnt do much of the setup from post 1. I had to do some work with gemfiles. Thats it.
Both my XenForo and Discourse were on the same server. That means that you can link the shared area of the discourse container to the Xenforo areas. That made my life a lot easier.
I didnt bother exporting my Xenforo DB either as it was on the same host. No benefit from doing another export.