I learned the hard way to always give a nuc a robbing screen to keep the bullies out. But I've started a couple nucs with nothing more than a feeder, pollen patty, and a frame of brood with some space on it and a frame to let them build out. I have also gone to to trouble of digging out honey frames and giving them to the nuc, but I haven't seen a difference in quality, actually. I do leave the nurse bees on and pray I didn't grab the queen too (and look again briefly the next morning too). So IMverylittleE, what you are doing will work.