Omega Dynamic face in an Omega Cosmic Case

Any opinions on this, I have a manual wind dynamic, that has damage to the face at the 6 o'clock position, needs replacing or repainting, but in both instances it needs removing from its original case, as I prefer the c case cosmic as a design and both movement and crystal are a straight swap, what are the opinions on this. I have several cosmic cases in both stainless and gold plate.