Virginia Cheeseman would be the lady to ask - She doesn't have any right now - but she does have Rhinoceros Beetles which are very similar. I'm not sure if she has had them before, but she can sometimes get hold of bugs she doesn't have.

I have bought stick insects and cockroaches from her before, she is very knowledgeable, very friendly and sends the bug by next day delivery, so it's quick too.

Try to buy one that's captive bred and not wild caught, as that is what's added to their decline in the wild.

Virginia Cheeseman