Hello!   Well this is an idea that's been bubbling in the back of my mind for some time, but recently became much closer to reality.   This little beasty came up on ebay, and I was unable to resist, so I bought it!     The relevance of this will soon be apparent!   A bit of background:   I've currently got two layouts on the go, Bakewell, which is substantially complete, but needs lots of details adding, and Grindleford, which is in the