Different makers will have different prices, I would imagine.
Alastair made my wineglasses in 2005 and they were £40 each, but they have a very complex stem. I've got a feeling £40 would be about the price of a good Wedgwood pint pot in the secondary market, something of similar quality to the ones you have.
I don't really think you'd pay more to get them made than you would to buy good quality second-hand, and that's assuming you could find it.
You want to find somebody who has experience of, or is willing to learn how to put handles on. They're more difficult than you might first think. It's important to keep the balance and weight right, for it to be sturdy and hold the body well when full.