Long story short, we got the cage, it's just a few inches short of 4 X 2, and two unwanted piggies, both females like Joise and Jamie. High school girl lost interest. (I suspect her parents got rid of them w/out her knowing.) One is agouti and dark orange crested American, Jaidyn (formally Coco) and the other is Jemma (formally Peaches), white and orange American. Jaidyn is pretty friendly, Jemma is very skittish.
Intros went well and pair bonds seem to have shifted. Joise and Jaidyn hang out more together.
Of course, we knew they needed more space for four, so we added a shelf that is 3 x 2.
Cost of cage and piggies, $25.
Cost of custom made shelf, $65.
Cost of having four piggies, priceless.