It's not difficult to walk. It's all stone steps, and there is no mud. If you are happy, take the bus to the peak cable car station, and then take the cable car to Jinding.
Why do you live in Jinding? If you have a lot of money in your pocket, living in Jinding is certainly a pleasure, and the standard room of 1000 or even 1500 must be comfortable. But if you are an ordinary citizen, I suggest you live in Dong Leiping, a farmhouse inn. The conditions are not bad, and the price is around 150-200.