I have a 73 240Z and have an opportunity to buy a 83 280zxt that has light body damage. ONly has 79K. Is it better to swap entire motor with FI and Turbo or add an turbo to exsisting. My car now runs but may need work mechanically in the future. Is the conversion complicated. I got an estimate of $1500 just for labor. I know u have to switch all the brain boxes. Can I use the 83ZT transmission as well or should I stick with the stock. If I do buy 83ZT does anyone need parts. It has good t-tops and insides are immaculate.