I don't have any particular experience in practice with this species, but from a medical standpoint I can tell you that a poor body condition score (as you have described) with visible external wounds (regardless of the cause) should be a red flag to any buyer. This is an animal we would categorize as being in a compromised state of health and for the purpose of anesthesia and surgery we would probably grade this individual as a grade 2/5, or possibly even a grade 3/5 ASA anesthesia risk, meaning that this individual animal exhibits mild evidence of systemic compromise (with the understanding that I have not seen this animal).
Given your description, I wouldn't take either of these individuals simply given the likelyhood that the male has already been exposed to the female (who exhibits evidence of a systemic disease process). Despite being sub-clinical at this current point in time. the male has already been exposed and could potentially develop clinical signs later. We see this alot, especially given that reptiles are relatively stoic until the "sh!t hits the fan." Often times, clinical evidence of disease in reptiles will only manifest when the animal becomes critical and all too often, it is too late. 10 bucks says the male develops similar clinical signs within the next 3-6 months. Just a hunch.
I say this because it sounds like the female is debilitated already and despite the occasional perk up, that isn't saying much!!! Her clinical picture can rapidly change when you get her home regardless of your efforts (meaning that I have had similar experiences before).
If you do decide to take these guys, I would take them to a veterinarian first, before you commit to buy them, for a pre-purchase exam. Any breeder who does not allow you to do this at your own expense is hiding something from you.
Ask your vet run a fecal exam to check for GI parasites, request a hematology smear for blood cytology as well. This can be used to verify the presence of blood parasites, the morphologic appearance of heterophils can be assessed to detect possible infections (bacterial, viral, fungal etc.), select types of cancer can be observed, etc.
In addition, also request radiographs to look for evidence of metabolic bone disease (also known as secondary nutritional/renal hyperparathyroidism. Radiographs will show evidence of cortical bone lucency, soft tissue/joint effusion and increased soft tissue opacity/aberrant soft tissue mineralization if the animal suffers with this disease. These three tests wont cost you much at all and will save you alot of money and future headaches after the rest of your collection has been exposed to these individuals.
I'm gonna be honest with you in that I smell something fowl here and these animals don't sound like much of a deal at all!
