Trading Winter mittens for Dex Filling~ (Only need 3 pokemon)

[CuteYuYu]

I'm very close to completing my pokedex and some of the last few pokemon I need are the legends/Ultrabeasts exclusive to Sun.

I need:
Solgaleo
kartana
Buzzwole

I am not trying to buy/keep them, just need them registered in my dex. Once I register them, I will trade them back asap. I can trade Lunala in place of solgaleo, Pheromosa in place of Buzzwole, and Celesteela in place of Katarna.

Whoever can help me out will get a pair of winter mittens~