Before, I did copy over what looked like the right bnd/ban files (judging by their names) when trying to create the level after running into the initial problems but that still didn't work.
So that leaves me with files with unhelpful file names, and I'm not going to find out which BND/BAN files need to be copied through blind trial and error when there's other levels that can be edited.
Rest assured that the finished result should appear eventually, regardless of the level used
