As far as actual upholstry covers, pretty much most acvw parts suppliers can get them. in town your best bet is cip1.com
But i think your talking about covers for your seats, which i dont think anyone makes. Not anymore. you can get some sheep skin covers or something else cheap at canadian tire or similar that would be universal, but i would just leave the seats the way they are until you are ready to re-upholster.
Afterall the ratty shitty look is in right now =). My seats are completely original and torn to bits, with the springs exposed and i think its sweet.