B18B swap

So I just got my motor from Attarco and it looks great. I have a 91 integra LS and the motor is a 96-01 B18B. I already took the manifold off cause I want to stay OBD0 with the stock smog equipment. Do I need to switch the headers or can I leave the headers from the B18B? Also what engine mounts should I use? The transmission mount is shot as well as the front engine mount. What aftermarket mounts are there? Any advice would help