T engines are extinct here, be it a T, 2T/G/B, 3T, etc. C engines that Saboor is talking about are Diesel engines, useless in a car like this. Nissan engines, again are hard to find here, are a trouble to wire up correct.
Daihatsu Charmants, again are rare here, and are hard to find in a good working order for cheap. Get a KE70, you can choose from a number of options for the motor. the easiest being the 3S-FE, cheap to buy and maintain, has been done to death here. Then the A series motors, (4A-GE all 4 gens, 5A, 7A, etc), you then have the option of a 3S-GE, bigger K series motors, or more fuel efficient E series. All these would require minor to moderate fabrication to your chassis.