1979-85 Eldorado FWD 15x7 Rims

[Catman420x]

Hi, just wondering if anybody has a set or knows what needs to be done to use an aftermarket set, of rims that will fit these year eldorados. I am not positive but i think it needs equivalent to the gen 2 or 3 fwd gm rims prior to 86 when they switched to the next generation depth tire.
I use a 205/75/15 tire, and ideally id like to keep it that way, not looking to alter the ride any more than putting same size but different rims on it. I have a set of 4 40+ spoke wire rims that came with the car factory, but i need trim rings for them and theyre a rare find. If you have similar, same, or know where to get apropriate rims, let me know please.

Thank you,

Leonard Lauricella