You'll likely be fine with the Lucas as the part no is the right one. It's a good brand too. Do you know if your car has a pierburg or vdo pump currently? Mine is an early '94 car and had pierberg so on replacing with a vdo pump i had to buy the vdo sender as well as the pierburg one is different..
https://www.volkswagen-classic-parts.com/catalog/en_uk/part/535919673C?epis=&ct=3&q=535919673C