I too have made a faltering start on a bit of Dolgoch station. ?From recollection, the Boyd book quotes 2'3" plus the width of the plate layer's thumb - that's 1/2" to me so 2'3 and 1/2" is a hair's breadth over 16mm gauge (16.0574.....mm to be precise, but my thumb isn''t exactly 1/2"). ?I have built 16mm gauge track for the public side and plan (if the project goes anywhere) on 00 track for the fiddle yard. ?Regular 00 gauge back to back runs better on 16mm gauge than on 16.5 with check rails laid to EM standards not 00. ?Dolgoch has no turnouts anyway so no need to build any.
Paul?
Paul Holmes