In my experience if the coil is bad then you got big problems, like it feels like the world will soon end. So you probably can just do the plugs and connectors. But you can change the coils if you want, since they may go "someday". Coils are like 50.00 I think.

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1998 C230 330,000 miles (currently dead of second failed EIS, yours will fail too, turning you into the dealer's personal human cash machine)
1988 F150 144,000 miles (leaks all the colors of the rainbow)
Previous stars: 1981 Brava 210,000 miles, 1978 128 150,000 miles, 1977 B200 Van 175,000 miles, 1972 Vega (great, if rusty, car), 1972 Celica, 1986.5 Supra