Ollanta is indeed Ollantaytambo, that's were all trains to Aguas Calientes either depart or pass by.

If you want to stay 2 nights in Ollanta, then I can see your point, that's not what I understood from your previous post. I thought you want to stay the first night in Cuzco and then go for another night to Ollanta, my suggestion was to skip the Cuzco night and replace it with a night in Pisac. Ollanta-Pisac is about 1h drive, not a big issue time-wise, but if you go by taxi, certainly more expensive compared to breaking the journey in Pisac, which is more or less on the way to Ollanta.

However, 2 nights in Ollanta has even the advantage that it is lower than Pisac in terms of altitude and therefore even better for acclimatization.