It looks like two different problems to me.
The blue coil does not need a ballast resistor.
There may have been two wires going to your coil before, a green one and a green/black one. The green/black is the one that should be connected to the +ve of your new coil. The green one is not used and you should tape the end so that it does not short anything.
The red wire from the 123 also goes to the +ve of your coil and the black wire from the 123 goes to the -ve of the coil. If you have an electronic tach, that also goes to the coil -ve.
If the car does not start, connect one of your plug wires into the coil HT, bypassing the distributor. Lay the plug on top of the valve cover and crank the motor and see if you have sparks. Then report back.
76 Suzuki GT500
2011 Jaguar XKR
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