Hey there!
One thing you should definitely do is quarantine her for 90 days before letting her join your other geckos. If she has any parasites or other problems, you will not have to worry about your other geckos catching something. Also, take care of your other leos before handling or cleaning the new geckos' cage. In 90 days, she will probably be big enough to join your other leos without any problems. Hope this helps and congrats on your soon-to-be new addition!
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0.1 Hogg Island Boa
0.3 Leopard Geckos (my very first reptiles-I've had them a LOOOOOOOOONG time!)
2.0 Wonderful Dogs