I am planning to model a 'new' A5 as #69843. The model will be 13ft high, have air brakes, OHLE flashes and other subtle tweeks. I would love to build one in real life but two minor problems 1. cost (always a problem) and #2 location. It's a little far to ship around easily...
That C1 is a wonderfully handsome little locomotive, and doesn't appear to be camera shy either.