Replying to Lange XT Freetour soles

Does anyone know where I can find replacement soles for 2016 Lange XT Freetour boots? I've called Lange they don't make those soles anymore and don't know where I could find them and said the best they could offer was a little discount on new boots but these aren't that old and I'd like to salvage. The 2016 are very specific and are not interchangeable with later years. I figure someone knows a shop that might have some laying in the back or some old busted boots with some with some life left.