The 'Where' is easy - from any of our awesome TDs, of which you have 25 to choose from:
https://forum.replica-watch.info/forum/trusted-dealers
But in the meantime, I'd recommend using the search function and also check out the Cartier Sub forum to see the different factories (some of which may not be currently available though due to raids) in addition to the various offerings that all come with both pros/cons.
It's your money at the end of the day, so ultimately your decision, which means your research
What I can say is that it'll be worth it when it's on your wrist, but reading is required first and patience second :search:
Best of luck