I would definately lose the shade cloth and go small mesh inside with larger mesh on the outside.
- shade cloth can be ripped, will hold moisture in winter creating a colder enclosure and will create shade.
- would recommend one side solid ply - for wind shelter, and the other three double mesh or one with glass for viewing.
also what doors do you have for feeding (small) and large (changing plants,cleaning or catching the gecko)?
if you are making 10 better getit right now aye?
have you joined the NZHS herp society?