The coil is a standard 12V BALLASTED coil. It normally runs at 7V and in Start it gets 12V for a few seconds.
Lots of vendors selling coils with all sorts of fantastic claims but it is a bog standard sub $20 piece of kit.
I have a Mallory Promaster coil ($96) that will take a lot of punishment but in reality any new coil will work better than that old one.
And that thing on the side is to reduce radio interference, not vital but useful.
BagusJeep lives in Bali.
1981 CJ7 258ci - Bagusjeep
1984 CJ7 258ci - Puthijeep
1981 J20 258ci - Gladys
1951 Willys CJ3A/MB/M38 - Little Willy
1995 Cherokee 4.0 - CHEROKEE