I would get the distributor cap, rotor, and wires. Actually, if you're going to do that...now would be a good time to do the Team Rush upgrade. Basically you take the old distributor cap off and replace it with a cap and rotor for a 1981 Ford F150 with the 300ci 6 cyl. You also change out the anemic stock coil...I replaced mine with an MSD Blaster2 that ran me $35 at O'reillys. You then get the wires for the same.
1997 TJ, 5" IRO front with 4.5" HD IRO WJ rear, 35x12.5x15 Mickey Thompson MTZ, JKS disconnects