Interesting. I, having had no particular idea in mind previously, have recently decided to try to do a layout based (loosely) on parts of the CB&SCR. I love some of the bridges on it crossing the River Bandon and the Chetwynd viaduct which I'll try to model at some point having no experience at scratch building. I'll look back through your lengthy thread but throw up a few pictures between builds if they're not on here.
http://irishrailwaymodeller.com/showthread.php/3591-Old-photos-Chetwynd-Viaduct-Cork-Bandon-amp-South-Coast-Railway?highlight=Chetwynd