There is a photo on line of the Priory.Go to:
Old Photos or the FOD Sun Green Web pages'
Lydbrook and District.
Lower Lydbrook.
The Viaduct.
4 Photos. View from the Viaduct.

There'a car on the road. About an inch above it the road curves to the left. There's a rather indistinct grey building there. That is the Old Priory.