Members here should want to help find your criters without wanting a reward. I know i'd like to think people would help me out if this happened to me, but I do suppose you would want to show your appreciation for help.
I would be posting reward posters in the local shops, say something like "I left my enclosure open by accident......" Make it look like you are not suss on anyone for stealing them. Also mention distictive markings, easily identified, well-known in local reptile scene, even mention micro-chips.
You could even put an ad in the local paper saying you want to pay top dollar for beardies, you never know.
Anyways I wish you all the best with this. I wish people didn't have to worry about thefts, but also be more aware about security measures. I am not saying this is your fault whatsover either. Keep us posted please.