I have found one person who has Carolina King on the outer banks of NC. Have sent an email to them to inquire about pups. no answer yet. this is a thread in a blog I found
http://www.lib.unc.edu/blogs/ncm/ind...07/25/bananas/
But I also found this
Dwarf Cavendish banana tree - banana plant 
Dwarf Cavandish some call it 'Carolina King' ....these banana plants get 5 to 6 ft. and produces wonderful sweet tasting fruit A vigorous banana tree with wider green leaves. One of the more common banana plant varieties in the USA. It is often seen container grown in back yards and botanical gardens alike. These banana trees have large bunches of almost full sized sweet smooth fruit. Will take short freezes easily. 6 ft tall at maturity. Zones 8-11 A vigorous banana tree with wider green leaves. The most popular greenhouse banana, will bear bunches with up to 90 bananas, each slightly shorter than the “grocery store” varieties. Juvenile leaves will have some reddish-purple markings, but later leaves will be all green. It is often seen container grown in back yards and botanical gardens alike. We ship a Beautiful healthy 14" banana plant.
from this site
Banana Trees Banana Plants
This site also states that the Cali gold and Texas star are the same as the Dwarf Orinoco
Who knows if they know what they are saying or not.