Tercel GTS has basically given you the order from most difficult to least difficult. Check out the sticky up top of the forum for the "A" series swap. 4agtetercel also has a thread here on his swap. Search and read. You'll find what your looking for. Bailing on the 3S in your garage so quickly?
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1996 Paseo 5E-FE 269,xxx miles - Gotta fix that sagging DS door.

New hinges on the way.
1993 Camry LE 5S-FE 264,xxx miles - New output shaft seals, Trans fluid service...
1997 Mazda B2300 213,xxx miles Underbody/frame resto in progress.
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