i had after market tow bar fitted and wasn't expensive ( didn't use VW) called around and got quotes and with parking sensors had a fixed tow bar for around £300 with EU electrics. i have an ex demo and find odd small things missing like the small screw adjustor on the table leg for table that goes outside....minor and not a deal breaker obviously.
if you join there is a very helpful list of the things you should have when you collect cali, worth it to ensure nothing missing especially if did option 1. i'd go option 1 on spec, and colour who cares you'll love it whatever as its a cali- happy travels...
if your trying dealer extras for free..... a small one i have which use all the time is the cigarette lighter torch which is super handy and very reasonable strong light for what it is. Monster mats is another one they like to throw in.....