Vroomer

[ I will later today.]

[ Hello I was wondering if you could exchange FC together, I am working on breeding and I need one thats in your safari if thats okay.
My FC is 4055-6976-6980.]

yea I would use the bags. and also I've had the best luck with metalkids IV calculator but not sure how good it is if you don't know the EVs

One way you can clear the EV's is to get a plain white "reset bag" from punching the default punching bag. Usually takes me about 5 or 10 min to get a reset bag. If you don't want to get multiple ones you can just get the one, save then use it on a pokemon, calculate the IV's then soft reset and do it to a different pokemon.

Also you can grow berries to reset the EV's although IMO that takes up more time. after either of those it should be easy to come up with the IV's on a calculator

just FYI you need to check if they have EV's before calculating the IV stats they might still be legit!