dude. going from carb engine to carb engine means you don't have to deal with swapping the fuel system. other than that it's the same thing. "easier" is a subjective thing, might be a weekend and a case of beer for one guy or a month-long headache full of forum hand-holding and ending up with trailering the whole thing to a shop and having them finish it for another. you seem like you're in danger of becoming the latter.
google is your friend:http://www.dorikaze.net/showthread.php? ... -into-AE86
GTS swaps into SR5 cars are seriously well documented in many places.