150K is just right for 4efte. but why 4efte? you're into need for speed? just kidding

1. Engine and Tranny
4efte = 60K to 70K with tranny and install but if you're on a tight budget, you can reuse your old tranny and the good part is, its a direct bolt on to your chasis.
4afe = more or less 50K with tranny and install, it needs a different engine support and its not bolt on.

2. for EE90 or AE92, it needs to be changed to an EFI gas tank, good mechanics can convert it to EFI, going rate for a surplus EFI tank would be 6500 to 8500 and its rare.

3. fuel lines? no need to change.

4. clutch and brake assembly, no need to change, but if you have the budget, you can change it. if you're eyeing for the 4efte, i would suggest to get levin big disk up front with good brake pads. more or less 3500 for the levin brakes

5. suspension? no need to change. good brakes are better.

6. radiator? no need to change.

the life of an EFI engine is in its wiring and sensors. source a good mechanic to do the engine change.

for me, if you are not into speed and the car's main purpose is to go from A to B, you can add to your options the 5efe, its a direct bolt on same with the 4efte but its a 1.5L engine. good low end torque. find the 3rd gen, its the most fuel efficient one.