I saw you are on the hunt for TW guava. I know a master garderner here in Socal who propagate pearl, crystal, emperor, king kong, watermelon, TW ruby and many others. He used to take preorders and deliver a van load of trees up to Norcal. Not sure if he is doing that anymore.
I bought emperor, watermelon, king Kong, crystal and pearl from him. I visited his yard many times and seen his trees where he air layered them. I can provide his contact if you send me an IM.