BTW, I found this info on vfaq, but it applies to 1G's and doesn't really answer either of my questions above.
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Spark plug wire routing - if you removed your spark plug wires without paying attention to the routing, don't worry. On 4G63s, the spark plugs are numbered from the timing belt/driver's side - #1 is closest to the timing belt. The connections to the coilpack are 4123, with 4 being closest to the head. (http://www.vfaq.com/images/Spark_Plug_Wires.gi f)

Note that since 4G63s use a waste spark system that fires 1/4 and 2/3 together, you can also hook the wires to the coilpack as 1423 and 1432 and it will work fine. Note that wire #3 is longer than #4 - shortest to longest, they are 1243.