Well the symptoms are classic bad spark plug wires symptoms. If you have a meter you can ohm out the wires (assuming you can get to them). I am not familiar with that engine. That would be the first thing I would check. I have seen that on several different cars. A friend of mine was going to buy a new car because he thought his car was hopelessly broken. I found a bad wire with my ohm meter and changed it. He was amazed. Ran like new. If the spark plug wires are good then it still sounds electrical as you suspect. So in that case maybe coil, crank sensor......

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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