If you are looking for a rep that look close enough to the gen article, the PAM250 rep is available from most dealers and will cost you somewhere USD300 to 350.
However, if a super modded rep is your cup of tea then be prepared to spent more.
Highly modded pam take time and lots of patience to build and occasionally they will appear in the "watch for sale" section
A highly modded rep usually come with
- Correct lume applied on dial & hands
- Gen swiss movt (same as what gen is using)
- OEM parts like the crown guard, crown
- correct case
- datewheel
- single AR on crystal (for daylight pam188. 196, 259, 251)
etc...
Here's some pics of modded daylight
Hope this helps