You could probably place it back in the same pot after root pruning. These don't have extensive root systems and don't necessarily need large pots. I've seen a 6ft specimen in a pot thay wasn't that much wider than the caudex (base). It was a taller pot though, so it did have room to spread roots. But, I think I remember the owner mentioning it had been in that pot for years, she'd just root prune it every couple years and back it'd go.
Planto
