Take a look here:
Accel's '82 Luv page (BTW...I used the '82 Luv for that search because it had electronic ignition and the stock G180 1.8 Isuzu engine.)
The coil you found uthe (Part Number: 8140C0) is the Accel superstock coil I'm using. It's designed to boost your spark a bit and works way better than your around 30 year old stock one which by now is probably bad. Have you tested it with a multimeter yet? That coil works fine with points or electronic ignition in a Luv and costs around $40.00 in most parts stores. BTW..the plain non-chrome version (8140) is a bit cheaper...lol
The other coil that mytmouz is talking about is around $75.00 in most parts stores and is designed to seriously boost the spark in most 12 volt systems for racing engines - but you will need some fairly expensive wires and a better than stock cap and rotor for it to work properly. Most stock caps don't have brass or copper contacts in them any more and won't last long with a super coil. Plus it will burn out your points fairly quickly.
So if you want to use stock ignition parts - use the coil I'm using. If you wanna go total high performance and spend the money - then go for the higher end wires, cap, rotor, plugs, and Super Coil all from Accel. They even have a high end racing distributor (Part Number: 4765501 with vacuum advance and Part Number: 4565501 without vacuum advance ) if you wanna spend more money for that too.
Going with all of their more expensive high end racing parts will make a slight difference - but IMHO more in the amount of shrinkage you will notice in your wallet than anything else when you are still running a completely stock G180 1.8 engine.