Just make sure the liners are the same length, if they are you can definitely try it. Once you re-heat mold the Dalbello liners, they will take the internal shape of the tele boot's shell. I've done this with aftermarket Full Tilt liners in tele boots, A/T boots, and all kinds of alpine boots. As long as they are the same length and roughly the same thickness, it should work out ok.