[BuddyPress Activity +] Convert Xenforo to Wordpress + BBpress + Bubbypress

I'm really stuck. I own 1 Xenforo forum with 70,000 users and 500,000 posts. I crave the customization of WP.
So I want to convert my forum to WP + BB + Bu platform.
My forum is too old and many errors.
I think there are many people who are looking forward to me.
Can you build it?