The CFX is probably my favourite concert grand as well. I’ve played Steinway D’s, Kawai and Yamaha CFX concert grands. The CFX was my favourite of these followed by the Model D.
I’m currently using NI Noire for a CFX piano and I think you can get very acceptable results after a bit of tweaking. I actually preferred it over the VSL CFX when I was demoing it. However, ViLabs are ahead of everyone else in terms of authentically creating piano sample libraries and to have a CFX of at least the Model-D would be truly wonderful.