If I am not mistaken (could be wrong because it is just through memory of my crazy ex girlfriend from Atlanta) but Helen is fairly close to Atlanta, no? If so, contact them. I am sure they would be pretty interested in hearing the story, they are actually a pretty well respected zoo, and if I am not mistaken they have a few venomous herp specialists there. They might be willing to do the research if you are willing to chip in on the testing kits. Just an idea
This has me really interested, especially since they are both little ladies. Are they eating ok now?