I am not sure myself of this.. cause i have also been searching for alternative shock absorbers for my Spectra 02.. But if you go to this webpage "autopartswarehouse.com" and search for shock absorbers for Spectra 02, they show up some KYB's @ $87.
Now comes the interesting part, if you lookup on that same webpage for shock absorbers for Kia Sephia 2000, the search result is the same exact SKU shock absorbers!!. If you compare the SKU from the KYB's for Sephia and for the Spectra, theyre the same (on that webpage that is).
So, everywhere else, if you lookup for sephia 2000 shock absorbers, they even have Monroe Sensatrack models for the Sephia 2000, which are probably compatible with Spectra 02, looking as the KYB's are compatible, or so that webpage says...
Here's the links for the sephia and spectra shocks list:
Sephia:
Auto Parts and Accessories Catalog - 2000 Kia Sephia
Spectra:
Auto Parts and Accessories Catalog - 2002 Kia Spectra
Good luck and let us know of your findings if you decide to try them!