Newest 321 Seamaster aquisition (hour hammer probs?)

My first ever Omega watch was a Seamaster chronograph back insin 2000 so getting into the vintage thing, I've always been keen on the 145.005.

Well, I'm excited to say she's finally arrived....



But she's got some issues with the chronograph stuttering a bit and then zero action when the reset pusher is pressed.

I've found this excellent article from the amazing OF members here (https://omegaforums.net/threads/the-12-hour-recorder-on-the-omega-321-and-its-problems.62357/) which helps to explain where the potential wear and replacement part would be, but what do the fine gents think an independent watch maker would charge for say replacing the hour recorder stop lever?

Thanks all!!