would these be any good for autos?

Ive only done one DWC so i would get some more opinions than mine but buying a DWC dosnt seem worth it its such a easy thing to make all you need is a bucket a planter lid, air pump and a air stone. but if you insist on it i would recommend the second one because you don't wanna pack 4 plants into one setup. That's just my 2 cents wish you luck.

well I was thinking of just using 2 hole sights. I was going to try 2 autos.

in that instance i would get 2 single buckets. rather than the 4 site just incase you get any light onto the roots etc

i started out growing in DWC, i used home depot 5gal buckets & lid, works great, but yea i would do 1 plant per bucket., may work with lowryder 1 & 2 but anything bigger than those you will have problems.