These were the photos I received. The paperwork is from the birds sexing. the woman selling them is not a breeder she is having medical issues and doesn’t have time for them and her pet galah or enough money for bills. I can also attach an image of the cage I believe it is in the same room as the galah. If they are incompatible would it be ok to find one of them a new mate?
Based on your copy of the surgical sexing... did these birds originally come from Jeanne Patterson? I would ask the woman selling them if this is the breeder of this pair. Additionally, if this is true, I would contact Jeanne Patterson... I've tried searching for her.... could the last name be spelled wrong? The breeder may be able to advise you the best if she has years of experience, success, knowledge of the species.
Do attach a photo of the cage, it may be too small for a breeding pair and not appropriate for them to feel comfortable for breeding. As
@melissasparrots said, if the male was pulled as a baby, hand fed and kept as pet, then paired with a female, he may not have any natural instinct to breed. With that said, and your question about finding a new mate.... then what will you do with the one bird you choose to replace? There are no guarantees another new bird will be accepted by the mate you choose to pair it with.
What is your plan? What type of enclosure will you provide for a pair, where will you put it, have you researched diet necessary for feeding, breeding , and housing pairs, have you researched the supplies you'll need should you have to pull babies if parents don't care for it, are you knowledgeable in hand feeding young babies. Lastly, would you be content to keep this pair if they didn't breed for you for their lifetime, their age is unknown on your document of surgical sexing so you don't know their true age.