Vern, at present the answer to your question is no. I've been having a go (off and on) at Heacham to Wells for three or four years now and it's only progressed as far as correct station layouts and scenic work at either end. There were two problems when I began it as a newcomer to trainz - 1) I didn't ensure that the correct scale distances between stations were observed and 2) I got hooked on TACS/GMax and creating models! I can do nothing about the second problem - I remain hooked. As for the first, I can think of a few options - place mile and quarter mile posts closer together than scale and ignore the discrepancy; start all over again which would lead to even slower progress; or try to save each station section as a separate module, so that they could then be linked with the correct mileage between. Final decision awaited ... Another problem was that the original was in TRS2004 and I've imported it into 2010 with some corrections needed.
My way of dealing with the connections between Kings Lynn at the one end and Hunstanton at the other is to use a 'placeholder' station for each, not authentic and only a board or two away from Heacham, so that trains can just run to and fro on the main line. If you are planning to make King's Lynn to Hunstanton, then I shall leave it at that and try to add more scenery to what I have already done.
Apologies for this excessively long reply to a simple question but I wanted to explain why nothing has yet been finished!. Perhaps I should set aside at least one 'hobby session' each week for the West Norfolk Railway.
Incidentally, King's Lynn is my home town although I no longer live there, and I was very familiar with the station in my youth. It will be quite a task to model authentically.
Best wishes.
Ray