Help wanted for T distributor identification

[NZ26Ttourer]

The “Truefire” ignition system on my 26 T has failed for the 3rd time, so have decided to install a distributor as my car has no mag and no original coils. I have purchased a distributor with auto advance, that rotates in a clockwise direction. I would like to identify the type of distributor so that I can purchase spare points, cap, and rotor.
Also - my car has been converted to 12 volt. Should I use a ballasted coil, or put some resistance in the wire leading to the +ve side of the coil.
Any help or suggestions appreciated.