[Buying]  New to this. Considering buying Ultimate Reboot and Bearing?

I'm not quite sure how to do this.
I don't want to have to buy the full tN, or a CZ Triple Booster Set, just for the individual parts, as I'm on a tight-ish budget. I'm hoping to get Bearing to avoid the teeth breaking on my CZ-S and Ultimate Reboot for a niche attack combo.
Not sure what a good asking price for either is.
Thanks for replying.
Post here with prices, and I'll PM you if I'm buying
It's still a maybe tho
Sorry