It is the same cage, and I don't think it looks like a bad one. Though I would like to know why one exposure has all the weird pegs and such in it in the one set of photos, and why it is listed under two different names.
Have you had more conversation with him? I wonder if you could see it and the degus in person?
1 Bichon/Shi-t-zu Ollie (b'gollie), 1 Standard poodle, Indie
Gestation is 90 days, but they don't show many signs until the last few days of pregnancy, and some times the only sign is the pups themselves. Degus are very good a hiding pregnancies.
I recall one case on here when they'd been together quite a while before they realised that one was a girl, over a year I think.
It never hurts to check. But there is a very obvious sign with male degus, and if you are going to adopt males you will need to be aware of it, the can and do masturbate, and rarely make a secret of the act, lol!