Hello,
Maybe I can help/inform you. On our site you can find more information. In our cages we have a lot of shelters and the China's can climb aswell. The size is length 125x depth 60x hight 45 cm. There are enough burroughs.
I just translate my Dione site from Duth into English, but my English is not that good, so sorry for the bad translations. I will work on it 
Where you from, what kind of Diones do you have? Do you know Terry Cox?
Our caresheet:
specie summer light winter eggs temperature incubation hatching
min-max hours october hibernation min-max febuary totall Celsius days period
E.D. Altai 18-25 9-18 cooling down nov-jan 5-10 heating up 3-10 26-27 17-32 may-june
E.D. Caucasus 18-25 9-18 cooling down nov-jan 5-10 heating up 3-10 26-27 17-32 may-june
E.D. Cherskyi 18-25 9-18 cooling down nov-jan 5-10 heating up 3-10 26-27 17-32 may-june
E.D. China 20-27 9-18 cooling down nov-jan 7-10 heating up 3-10 26-27 17-32 may-june
E.D. Korea 20-27 9-18 cooling down nov-jan 7-10 heating up 3-12 26-27 17-32 may-june
E.D. Normal ( no locality) 18-25 9-18 cooling down nov-jan 5-10 heating up 5-15 26-27 17-30 may-june
We wish you the best, and of course good luck,
Gidi & Wim van de Belt
www.elaphedione.nl
www.elaphedione.com
Dione site
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Greeting from Wim (www.elaphedione.nl), Amsterdam.