Dear Roger,

do not keep them too warm at night. Roome tmep fully suffices. Also time for hibernation is close. Hibernation can be skipped for this species but if you consider breeding, you should hibernate them and moreover regular hibernation is beneficial for leongevity. I hibernate min in a refrigeratir at 5 ° C for 4 (babies and juvies) to 8 weeks (adults).
Do not worry too much about feeding Zophobas . They are muchg better than their reputation and if gut loaded proeperly, they are quite a good food source. Ask Bert langerwerf...
I do feed like 10 kg of zophobas per year to my lizards since these insects are available on the market and I only have good experiences.
Jewelled lizards normally do not suffer from severe parasite infectiosn. A Panacure treatment suffices in most cases.
Do you have pics of your animals? Maybe they are so small because both are females?

Best regards

Ingo