Here are a few links of a Peppercorn A1 class 4-6-2 built full size during the last 15 years or so in England.
The Peppercorn were basically the final expression of LNER passenger power before the British Rail standization. They were very similar to the Gresley A1s, which were made famous by the Flying Scotsman locomotive.
http://www.a1steam.com/
http://news.bbc.co.uk/2/hi/science/nature/7537462.stm
http://www.northernsteam.com/A1.htm
- Andrew
BTW the Ps-4 is still moving along! just slowly....