Sounds good. I have never kept them, so I don't have personal knowledge. But skinks tend to be pretty hardy. What is your substrate? I have kept Schneider's skinks in that size cage, but I prefer the deeper floor plan of the Vision cage. (deeper in width). I find that the depth allows for more gradients. Downside to the Visions is trying to keep sand out of the sliding glass door area.

I would imagine that winter cooling would be an important part of getting your skinks ready to breed. I keep my M/F pairs together all year.
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Lisa Rakestraw
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My skinks:
1.1.1 Corucia zebrata (Berman and Joni, baby Charlemagne)
2.2.2 Eumeces schneideri (Jack and Mabel; Kaa and Cochisa their babies)
2.3.9 Egernia striolata

Hubby's snakes:
1.0 Bogertophis subocularis (Humphrey)
0.1 Lampropeltis alterna (Sandy)