The back had 31 screws and not a single hole. I had to borrow a drill.  I then placed the backing and it didn’t fit.  The back was not the same shape as the pantry.  

The doors did have screw holes. I used them and the doors are not even with each other. It says not to use a drill but it seems that I’ll have to change some of them to make the doors even.

I can tuck this in a corner so hopefully these things along with the cheap feel will not show.  It’ll be easier than returning the monstrosity.