Hi there and welcome to the forum.
Many congrats on your new Amazon. You've received some OUTSTANDING advice!
Please, don't buy a bird with any expectations, especially expectations that he/she will talk. Yellow Napes can be AMAZING talkers and singers, but they have to feel comfortable and secure first. 3 years is still very VERY young for a YN Amazon. He's not even mature yet.
The best way to teach your bird to talk is to spend MUCH time with him and repeat, repeat, repeat. Yes, there are CDs and even videos out there, but I would wait until he starts talking before you go that route. I personally use THIS device when I have to be out of the house for a while:
Amazon.com: Wordy Birdy Digital Speech Trainer: Kitchen & Dining
As for a play stand, I personally have 2 Java trees and LOVE them, but it doesn't have to be fancy, you can even build your own playstand with safe branches and/or PVC. Manzanita and dragon wood works, too.
As a dog lover, I just HAVE to ask: Can you PLEASE please...pretty please post some pics of your caucasian ovcharka?

They are GORGEOUS, hairy beasts!!!