I'm buying an S13 240 in early September. The plan is to buy a high mileage model to restore/modify while using it as a daily driver. What should I look for considering that the car will have a lot of miles on both the engine and car? How many miles do the KA and its tranny last before they need to be replaced? The engine will have to last for at least a year while I upgrade the suspension and everything else on the car.