By using single points you can create multiple waves to make a gorund loop noise.
Those ebay kits are over rated and priced.
Why do you need to ground your head and block? They are botled together ?
Just another cash grab.
On an ES their are 3 main ground points
1 - under the battery tray , .5 feet
1 - to the transmission , 1.5 feet
1+ to the starter, 1 foot
everything else is not high current and is usually fine.
5 feet 0-1 gauge wire max ,$25
6 0-1 gauge gold teminals $15
Adjust lenght by engines just take a look and see how much you need.
that is everything and it works great , i don't use cheap wire which can harden with a cheap copper conductor, which leads to the reason you just replaced them.
Compare a GM ground wire which is hard brittle and oxidixed after a year or 2 to a Toyota which is much more plyableafter years of use.
If you decide to change your battery terminals do not buy cheap ones as they will not fit snug and fall off, i had more than a few customers who have had problems and left them with me for paperweights