I have been remiss in not giving the reference for the CLC van built by the MR I mentioned. It is actually the Railway Modeller for June 1983, page 228 – the article is titled “Vans for Cheshire Lines…”
David Goodwin produced an article on how to make 10T MR vans from the Slaters 8T kits – of course Slaters then brought out the blasted thing as a kit anyhow!
In it he explains and illustrates the CLC variant built in 1908 by the MR, including the brake gear and axleboxes .
The fount of all things CLC was Bob Miller; HMRS articles are worth trying to find. However, the LNER Society hhas recently republished these articles, not all of which I presently have.