Unless you have chrome rims, very unlikely for an 80's bike, I would look at your brake set up before changing wheels.
If you perchance you do have chrome rims, they are also likely to be 27" as opposed to modern 700c.
By any chance they are 700c , decathlon do reasonable wheels at reasonable prices. https://www.decathlon.co.uk/C-755629-bike-wheels-and-accessories
Unless you have chrome rims, very unlikely for an 80's bike, I would look at your brake set up before changing wheels.
If you perchance you do have chrome rims, they are also likely to be 27" as opposed to modern 700c.
By any chance they are 700c , decathlon do reasonable wheels at reasonable prices.
https://www.decathlon.co.uk/C-755629-bike-wheels-and-accessories