Timing belts for the hundredth...

After I can't be pushed out for long, I have a few more specific questions about the timing belt change.

I have several offers that are quite different in price. But, the cheapest (an Audi contract workshop) obviously also makes less.

The top term is service package timing belts (which suggests that the package contains everything that belongs to it), but if you look at the list more closely, you notice that some things are missing. For comparison, I took the offer from the Audi center of our city.

They have listed the following things:

077 109 246 B
Damper: 71,50 €

077 903 137 Q
Ribbed belt: 58,50 €

077 903 341
castor 2x: 69, 00 € each

When I look at the numbers on my list, I mean that this damper part belongs to the water pump and the above rolls to the rib belt. The other WS obviously didn't plan on doing that.

What do you think, should the WP and the V-belt be allowed to join in, or is it not so important? Actually, you might think that if you're on it, everything will be done in a minute.

But since the other Audi WS has only made this reduced offer on the same question, one could assume that the rest is not so important.