Well. I changed the plugs first and cleared the P0300 code. Took it for a drive, started and stopped it numerous times. It came back pdq. So I changed the coil next, the Accel Supercoil I linked above. Did the same, took it for a drive, started and stopped it numerous times. Again, code came back. So, today I changed the wires to the JBA spiral wound all metal wires. Did the same drive again. So far, so good. Hopefully that fixes it. If it doesn't, I have no idea what else to do. I suspect, looking at the wires, they may have been the culprit. Keeping fingers crossed.
Funny thing is, I bought the car November 15th. There were no codes when I bought it and all the monitors were set. so no one did anything funny. Because the EVAP takes a long time to set. The P0300 came up rather suddenly last week. Guess I am going to have to do the fuel filter soon. Have no idea when, or even if, the previous owner ever did. But, I am getting no codes for anything else, just the misfire.