Looking for camshaft part numbers

Good evening everyone,
I'm new here and would like to ask a question for those with more experience:

I have a 1999 model, A4 B5, 2.5 TDI.
MKB:AFB GKB:EFR

This car was fitted with a 2004 AT engine with 149,000 km, which was replaced due to a major engine failure, thanks to the camshaft problem. This engine has B-head cylinder heads, which feature roller followers. However, these 2 camshafts show extreme pitting (I now have 250,000 km according to the odometer, so approximately 100,000 km of engine life). Since a timing belt replacement is due soon (which I will do myself), I wanted to ask what the part numbers for the "new" camshafts (from 10/2005) are, as I would like to replace them before my vacation (2 x 1100 km).
Does the pitting also occur, as has been frequently discussed regarding "soft" hydros in winch-lever AFBs? Or is there a different quality issue with the type of heads?

Vehicle Details:
Audi A4 B5
Born 02/99
Mileage: 250,000 km
2.5 TDI AFB since 149,000 km AFB-B** AT-type engine (installed in Audi)
VP44 is the one from the old engine.
Turbo and nozzles have arrived with the AT machine.
Transmission EFR (ZF 5HP19)

Best regards,
Nviduum
alias
Benedict