Vale of Rheidol Engine in 7 1/4"?

I'm beginning to cast around for a new project and I do love the Vale of Rheidol 2-6-2s however I can't find any drawings for 7 1/4" gauge or even another gauge that I could scale up. I thought that there was a 3 1/2" gauge set of drawings but I cannot find them. Can anyone help?

Thanks.

Simon

 

There is one that occasionally runns at Echolls Wood, Kingsbury. Selsig, on here, has driven it and may be able to help if you PM him

 

There's one in the National Railway Museum but I can't remember if its 5-inch or 71/4in.

Andrew C
Narrow Gauge World

 

It's 7 1/4" built by Harry Powell. Dennis Bates of Canley near Coventry also built one back in the 1960s which was a pioneer narrow gauge 7 1/4" loco and in a way was semi-responsible for Roger Marsh to consider building "Tinkerbell".

 

Thanks to everyone who replied - a few leads to follow up.

Regards,

Simon J