This is a beautiful layout that I have seen first hand (Railexpo 2008 and CFBS fête vapeur 2009) and captures perfectly the Picardie coast metre gauge CFD. Hints of the CFBS and the lines around BercK plage/Le Touquet.
Peter Smith and I cooperated with the construction of his exquisite 'De Dion' style railcar.
I did enquire as to the real value of the layout about a year ago and was quote at around £3K.
It has done the exhibition circuit and a few areas were showing signs of wear, the trackwork points I noticed.
The Smith brothers are excellent modellers and anything they make has and deserves a high value.
This layout however needs a small team to transport, erect and operate successfully.