timing belt/cover for DOHC ZC

I have a DOHC ac and I accidentally dropped a valvecover nut down the timing cover cuz I dont have the top part, didnt come with my car and I couldnt get the crank pulley off to get it out, so oi drove to friends house with aan impact wrench and took it off, got the n8ut out but now have half of a timing belt and need to know what car to buy one for, a 1st gen integra?

and can i get the upper timing cover portion off the same integra?