Timing belt change Ranger BJ 2011. 2, TD

In my workshop I was advised to change the timing belt. Last change 7 years ago , about 22,000km since the drive. Overall are at the Tacho 47oookm, my second car) Since I was told that here an invoice of about 750 € is to be expected, I wonder if these expenses are currently necessary with this low mileage. Alternatively, I am offered a cheaper replica package. about 500,–. Can one judge the condition of the belt somehow. How long do you drive with timing belt? I am already aware and was also often told that a broken timing belt is even more expensive.