Congratulations on taking on 480 ownership - the car will give you hours of pleasure and probably hours of pain, but they are loveable little cars and worth it all!
You will find some help on here if you shout when you have a problem, but your best bet is to join the Volvo 480 Europe forum (
https://www.volvo-480-europe.org/forum/index.php) where you will find a wealth of knowledge and experience to draw on.
All the best
David