Well I wasn't going to do this but I might anyway. I oddly enough had a front spring break on my wifes 2000 SSEi. I think the bearing cup that the spring sits in went bad & caused it or the spring just had a weak spot. It broke at almost one full coil at the top of the spring.
Any way If I replace it with a stock spring I'm going to order two just to assure that they match in ride hight. So I thought if I'm going to spend the money why not order a set of drop springs & tighten up the ride as well? I don't wont to slam it, but just take an inch or so off if I do. But for what I have seen no one makes a direct fit for the Bonnie, is their anything that will fit them?

The exact same thing happened to me! Passenger side front spring top ring just broke out of nowhere. I ended up replacing both springs and the struts myself

Yep mine was the front driver side.