dshepard

I fell in love with the idea of this tree, after seeing it in one of my books.
Does anyone have any tips for me??
The tree is in a #3 pot i dont know if i should keep in the pot, or start training it now.. its still cold here in main, and the buds have not started to swell. Should i get it in a shallow pot before spring. and if i do. should i try gently washing out old soil to spread the roots evenly or begin pruning them to get it in the pot? Im going to buy a large tray style pot. what depth should i get?? i dont plan on pruning branches as much as pinching buds. i would like to increase the girth on every thing. If you have any ideas please let me know.