Had me scared with the post heading. Good luck with the conversion.
lol....yeah...after reading the title of this thread, I was thinking "destruction". Fortunately, I clicked on the thread and was happy to read about upgrades and improvements. I hope the parts come in the post quickly!!!
If its just the FBL head your replacing, then you only should only have needed to take the FB head off, and left the swash and main shaft, in place.
Unless the new FBL unit is everything included down to a new shaft.
Good luck with the rebuild.