If you get the same size as your Konflict, then the tongues will fit (as well as the other parts).  What is harder to figure out is the tongue stiffness.  As any long term (2+ seasons) FT user will tell you, the tongues soften as they break in. And when you buy used tongues, a used #8 is quite often not as stiff as a new #8.  What's even harder to gauge is due to the plastic getting older and more brittle.  Plastics age.  And when plastics age, their properties change.  What happens most often is that the plastic gets stiffer and more brittle and can crack more easily.  Bear these points in mind when buying any used plastic thing, especially an old Raichle.