From Mader's Reptile Medicine and Surgery (the textbook authority on reptile med)
If the cham appears totally normal and does not have health problems you may not need to treat it. It sounds like chronic prolapse is of concern though. And if you are thinking of adopting this cham and bringing it into the same facility as the rest of your collection, it would be my advice to treat it. Lack of disease in one animal does not necessarily mean it will be innocuous to the rest. If one of your chams gets infected (only a matter of time since this is so contagious) it may cause disease in them due to different immune status.
I would find a vet comfortable with doing the suture for the prolapse. You don't want this to keep occurring. At least that vet was honest about it! Some will just blindly do it and end up causing more harm than good since they don't know what they're doing. I'd rather they tell me to find someone else with more experience.
as far as danibug can tell, he appears normal, cept for the chronic prolapsing. which is of course a concern.
while i do plan to adopt him, i plan on quarentining him to a place that only he will be. no contact with the others, and using gloves when interacting with him,
fortnatlly, i just spoke to my vet, and she can and has done the purse stitch thing, so that is good. and i agree that the other vet shouldnt have done the stitch because she wasnt comfortable.
i am hoping that my new vet will prescribe ponazuril and not albon.
i called one vet, who when i said i didnt want to use albon because of all the issues, the receptionist mad eit sound like i just said i want to treat my cham with purple paint!

they use albon all the time and never have problems.
but on a 6 month old cham im not willing to risk it. and my vet that i will be taking him to, does not like albon, because of the same issues already described here.
so danibug will be putting a boat tone of ky on a piece of gauze, wrapping his vent up tight, but not too tight, so he can make it through the shipping without prolapsing.
so he should be here tuesday morning, and hell be off to the vet tuesday evening.