Hey Meredith,
Those cages are not bad; however, I find that ringnecks need a bit more room to breed successfully. Personally from my experience, ringnecks in smaller cages that are lower to the ground did not produce fertile clutches or had low hatch rates. To remedy this problem I suspended the cages about 8-9 feet high and BINGO—we got results. I guess it has something to do with the ringneck feeling secure about its environment. With that being said, the bottom cage will probably yield bad results due to the fact it’s lower to the ground.
The cages you have selected are very good and I see them a lot in pet shops, but I would personally go with a larger flight cage per pair. Although I believe your ringnecks could be happy in that cage I tend to always say, “Go with what your budget can afford (size).”
On a more positive note, those powder coated cages are really nice and easy to clean—which is a plus. I also believe they have the same model cages that are side-by-side—those might be a better option.
Hope this helps,
Imran