Merge 2 IPB Forum Databases (repost)

I need someone who has previous experience and that has successfully merged two Invision Power Board databases together in the past. I have two forums. Board A: ~40000 posts | ~1600 members Board B: ~25000 posts | ~350 members I want to merge the posts, topics, and members from Board B into Board A. ## Deliverables 1) Board A with the merged, topic, posts, members from Board B. Board A should be fully functional and topics, posts retain their proper titles and content. They should also be referenced to the right members who made the topic and posts. ## Platform My Invision Power Board, which runs off a mySQL database.