I've made a start on DoveLems, adding my results for the Plain levels to the opening post. Of these, I would say 100% on Plain 15 "Ground Floor, Please" is the most challenge-worthy.
This rank includes a nuke level, so we will probably never know for certain what is the maximum possible that can be saved. I'll keep track of our record in the same way as with any other level, and if anyone manages to improve it, let me know!