Well, they will have a few old rails left over....
They could be used to make a solid part scale framework and then do as the Germans have done in Berlin, (see
http://www.dhm.de/webcams/VID1.html and see the "new" Schloss) then use covers printed with the building to go over the framework. Would be a wonderful reminder of days gone by.
Come on Isle of Man - it could be such a lovely three dimensional background where we could have our photos taken against it as a long lasting souvenir....
see also
http://www.bbhmg.eu/m3.htm
Cost it out. Shouldn't cost too much.
I am absolutely serious about this, if they are only doing the Dawn Chorus in a limited area this would be an extra area to do a few nostalgic events.