All of the end link bushings on any of my 88s were white. At least on the inside, after they crumbled.
Looked like they might have been ivory or tan colored when new.
The replacements are pretty generic parts. Most of the ones I see are red poly. Even if the bolt in the kit you find is the wrong length, you can probably reuse your original if it's not rusted.
You can buy the ones that the Fiero Store sells, or you can shop around for price.
[This message has been edited by Raydar (edited 04-13-2014).]