The name has been updated to C versicolor in the scientific literature. Most vendors are following that lead. I hope this helps you find one more easily.
I've purchased from Jamie's before, excellent service!! She sold me a beautiful P Striata and the feeders and the enclosure--total package. Here's the link.
https://jamiestarantulas.com/avicularia-versicolor-martinique-pinktoe-1-2-3-4/
The other thing with these is that the caresheets are outdated and dead wrong about humidity. Just keep a full water dish available at all times and you're good to go. Do NOT mist the sides of the enclosure or use wet substrate. They're arboreal so there's no need to moisten substrate at all. Room humidity is fine. Check the water dish twice a day.
Versicolor was my very first tarantula. Now, she's thriving but I've still not managed to get a sex yet.