There are quite a few bits and pieces missing from the MTO widget - Its possible that Rancourt did not want to give too many options, and built out everything they expected to be most saleable first.
PDG can process orders with whichever sole, leather, etc. you want. we can also combine suedes with less textured leathers like cxl which the widget cannot current do. I imagine emailing rancourt direct could get this done as well