Advice on repairs: Front oil seal leak + shocks

Hi,

I've got a 2015 octavia scout mk3, manual 2.0 diesel, with 135,000 miles. It's service is due. It's looking expensive!

In the last service there were some advisories. These were:

Front main oil seal starting to leak

Rear prop shaft starting to split

Front arm rear bush delimitating

Both front shocks leaking

Haldex service due

Brake fluid due

I've asked my local VAG independent garage to do the service. They say that to sort out the oil seal leak they will have to also replace the cam belt and water pump. The cam belt and pump were replaced in 2022, due to a fault in the previous one installed in 2020.

Do you think I should replace the cam belt again so that the oil seal can be replaced?

Should I replace all 4 shocks or just the 2 fronts that are leaking?

There is a slight strange noise (kind of an echoing rumble) coming from the rear of the car, and the car sometimes judders when accelerating from stationary. Could this be something to do with the prop shaft splitting?

The garage said they will assess the prop shaft before replacing it.