I just came back from HK, P1i is around 5300-5400 HKD.
It is about 599.99 USD in some US websites, I don't think it will cost 27,000 NT when it comes to Taiwan. P1i is obviously cheaper than N95 everywhere else in the world, no one will buy it in Taiwan if SE sells it 27,000 NT.
It is available in some HK Shops, you just have to walk around and ask. I don't remember the shop where I saw it because I just randomly walked in and asked. I was in Causeway bay.
Right now it is released in limited quantities, the P1i have been spotted in France, Singapore, UAE, Sweden, and some other places. I think in a couple more weeks, we should see it in many more places. The price should settle down after that.