Basically you dont need to use TC at all with replay, or at least I dont. Replay is just a simpler and better form of temp control
All I do is screw on the atomiser with any TC wire and adjust the watts until I am happy with the vapor then hit "save puff". Every puff after that will be the same as the one you set it on.
You dont need to know the wire type or tcr and it doesn't matter if the wire type is even available on the mod as long as replay can sense a resistance change it will work for example I put a joyetech riftcore duo atomiser, the one with the ceramic plates, on a 75c and it worked perfectly in replay mode
As far as your question about maximum temp goes that would be purely set by the watts the more watts the hotter it gets i dont think there is an actual number