I dont know if this helps, but this site (
www.naganojapanese.com) is selling a 2.0 DOHC 4G63 Eclipse motor for about $550 i believe it comes with a manual transmission, you can just get the transmission and do whatever you want with the motor (I could buy it off you). Also, regarding your current motor, you also need to get a manual tansmission's ECU. The reason for this is my friend had a 1994 Civic DX, and he got a manual transmission for it, he hooked it up and everything but it just wouldn't run right. He went to a shop and they told him he needed to swap the ECU out too.