Yes, as far as I remember he was talking about the actual configuration. There seem to be changes over time.
I'm thinking about combining the models... Maybe, if texturing isn't too tedious...
I had a look at Turbosquid. There is only one model, that's better than Chris's or the NASA model, and it costs $1299,-. which is justified, I guess. But there are some ridiculously expensive models. I don't know, what these people are thinking. These meshes are crappy compared to the mentioned free ones.