There are many preferences on how to connect hardware. Try a few different connections to see what works best for you.
I like the versatility of being able to easily and securely switch my anchoring system between finned super stakes on chain, or a reusable cable stake with a chain top section, or a planned disposable cable stake, or a butterfly for double staking with rebar. The quick link makes this easy and a secure switch.
I prefer to use quick link exactly like Taximan does it, or to connect directly from straight link chain to the straight link chain. It depends upon if anything is damaged. I run all of my crunch proof swivels the same way for this purpose.
Even though it eliminates one swivel point, at the quick link connection I prefer one less J hook connector wherever possible - one less potential for failure. I might think differently if I welded my J hooks.
Also, for me, I don’t get good movement and swivel action squeezing a J hook around a quick link. And they then are impossible to remove without ruining the J hook and sometimes the quick link. Others may have different experiences. It looks like RHuff has that issue worked out in one of his photos.
I use cable thimbles when I plan on reusing something. Such as cable slides for beavers or heavy cable stakes with chain top section.
And I heartily agree to tool tighten every quick link. A wrench or pliers and a screwdriver lock them down.
Treed - after you work out your connection system, you may wish to experiment with pre-drilling for the various anchors and stakes. Taximan is the expert and got me hooked on it. I pre-drill in warm weather with long ship auger bits and cold weather frozen ground with long carbide masonry bits. It is easier and reduces aching wrist and shoulder joints. I get cheap ship auger bits at Harbor freight. For frozen ground It takes better quality to hold up so I use Bosch bits. All powered with a Milwaukee 18 volt cordless 1/2” variable speed reversible hammer drill. I use the same drill to power a 2” auger bit for dirt holes in warm weather and in frozen ground a 1” carbide bit to grind out trap beds. The side handle helps to control the torque and reduce strain.