You might even be able to do some late season T budding if you can get the stock up to pencil size by late summer. I would probably prefer to let the stock get to about 5ft then cut it off at 18-24 inches to force laterals at a wide crotch angle. Whenever those laterals reach the necesary size you could either T bud or graft. It partly depends on your source of bud/graft wood; when is it avaliable.

Also, my limited experience says that the rootstock will probably give better crotch angles than grafting a cultivar and later grafting to laterals on it.

If you have the bud wood or it is close, I'd tend to go T budding as soon as the stock is big enough. If you need to get dormant graft sticks from elsewhere, grafting next yr might be better. But not sure your stock will be big enough to graft by next spring.

The Fruitnut