I have an 84 and 89 skyhawk, the 89 is parts. My 84 has an automatic transaxle and my 89 has a 5 spd manual transaxle. Both engines are 2.0l 4 cylinders, with the only difference being the 84 is ohv and the 89 is ohc. I wanted to put the the manual into my 84 and was wondering roughly how difficult the operation would be and if at all possible would there be any trouble mounting them.