ISO: Tecnica Cochise tech sole kit

Hi, I have a pair of older tecnica cochise boots that have the option to change out the alpine sole for a tech sole. I could not seem to find any online, all places are sold out. Also, if anyone has a newer model of the cochise that come with tech inserts I'm willing to look into those. I'm not sure if newer models are compatible with older models of the boot but am willing to try. Thanks!