That’s Andrew Alexander. He is a known merchant to a lot of blacksmiths and he is a very good salesman. He can talk down or up on price pretty easily. If you are seriously considering getting a power hammer, I suggest asking him to find you a tire driven one. They are cheaper, small-ish in size, and typically will not require triple phase. They are also cheaper since they are more-than-likely hobby made. He gets them occasionally.
The Makerspace had a power hammer a long time ago, but no one was willing to put the work in to get triple phase run to it. It was a good one for an amazing price too. It was considered dangerous and large, and without the use of a forge inside it was also considered useless. So it got sold.