Good luck finding your new baby, and I'm sure the one you have is wonderful. Kodak is a small at 3lbs, both his ears are down and he has his tail. I love him just the same as if his tail was docked and ears were up. His ears were up when I got him, he just became our lil scrappy. That doesn't change anything for me.
The word teacup, t-cup, runt, Tiny, extra teeny, teenyweeny, tinies, etc. offends some people. One day it will be realized that those terms are not going anywhere and will be used forever. So if you are looking for a small one that will be 3-5lbs, that's a more exceptable request. They take a lot more love and care and that's why people get concerned when they are requested in the manner that you typed.