I don't know why the config got lost out of the zip, but I have added it. Yes, it was done in Misfit.

So what's your way of making the skin of the model then?

I just do it in misfit with the edit texture projection dialog . I pick the bit (group, or selcted faces) then select the group option in the map schema, then select one of the projections that best matches the part. After that I usually nudge it around by selcting the vertices, and using the tools in the dialog. While this may sound fiddily it is probably quick and dirty texturing in the world of modeling. The main draw back is a lack of undo in this dialog. I dont use the paint tool much.

In terms of the graphics, in this case I cut bits of an image and stretched them over the approximate size.