Correct pot size for Brassocattleya Florida Stars "Spring Zing" division

[BrassavolaStars]

Hello All,

I recently received this front end division of a Bc. Florida stars clone called "Spring Zing".

What pot size and type should I use to pot it?

I have a 6-inch wood basket (which would need to be sterilized and I do not know what the sterilization procedure is for wood) and plastic pots in almost every size.

I will be using the Repot me Bark, Charcoal, Leca mix.

It was growing attached to the mother plant in a wood basket with Leca originally.

All of the roots are alive with green or reddish-green tips.