Paradox
Imperial Masterpiece
Pond Basket/Colander or training pot? Heck...plant in ground even? I have a nice morning sun, afternoon/evening shade spot for either option.
At this point, whichever would be easiest to get it potted without messing with the roots too much would be the best right now.. You can repot it into something else that would be more ideal for training in 2 or 3 years.
Right now you want to focus on getting it over the hump of this less than ideal time for a repot.
Once it has recovered, is stable and growing well, you can focus on the next step.