Right now I'm growing passion flowers, dracinia, hibiscus Texas star, and regular yellow hibiscus in my greenhouse. Orchids also make a nice addition but you'll have to be very careful to their needs...
I have got a Nursery out of Florida that has them for sale. Plus there could be other Nurseries some possibly out of Southern California. I had one for the summer and the nursery that I purchased the plant said the leaves would drop during the winter and then grow back in the spring. Spring came and the leaves never grew back. I would not mind working with family again. I still have got a couple giant Sequoias.