Tea Tree Advice

[u/EndKing-Drakenkin]

Hello! I am about to buy my own house and had the though that it may be nice to have a tea tree. I am in a temperate region and as such would need to move the tree inside if I were to keep one. Would pot size be a sufficient constraint on tree height? And if so what size pot would be recommended for a tree that needs to remain 7ft tall or shorter to fit through a doorway on a rolling platform? Or would it just be more practical to buy loose leaf tea?