買下列哪隻鋼琴好?

My daughter is 6 year-old. She learns Piano about a year. I'd like to buy a piano. Which the following models you will recommend? If my budget is ~$18,000, can I get the good new one? (I don't want second hand)

1) Yamaha YA118/PE3
2) Yamaha U121G/PE3
3) Yamaha C113T / PE3
4) Ritmuller UP120r1/PE3
5) Toyama TX22