Nick's Edibles brings things in from the Orlando area. You could join his FB group and ask about where he's sourcing from. I just checked his list and he's got dwarf nam wa. Also, there is someone up on Merritt Island who posts on CL a lot - he's a fruit tree seller and is located right on the island. I have a friend who's bought from him several times and has always gotten good plants.  Are you in the Brevard Fruit Club - they had one for raffle at last week's meeting 

Hello, I'm Laura, currently living in Palm Bay Florida right along the Indian River - hence the 9b/10a designation since we are on the cusp and can grow some things they can't just a few miles inland. I'm originally from Connecticut and moved down to Miami about 20 years ago and since then have bounced around to a lot of places including southern Florida, Buenos Aires, Argentina, Asheville NC, Little Rock Arkansas and finally back to Florida to an area that feels so weird after living in sub-tropical Florida. This region I live in can be as dry as the south of France or as wet as South Florida and makes it really challenging.

We've got about 1/3 of an acre. When we moved here there was a Haden mango, Myer lemon, guava, some miscellanous bananas, loquat, sugar cane, papayas, and a Spondias purpurea - hog plum. Since then I've added an Everbearing mulberry, a mango that someone gave us and I have no clue what it is, elderberry, ice cream banana, dragon fruit, moringa, and a passion fruit plant that came from Brazil, and a kaffir / makrut lime. I've always loved plants but not been so interested in growing them, but that has recently changed so while I recognize a lot of tropical fruits and vegetables from around the world and even their plants, I'm not very knowledgeable about growing them and am eager to learn.

I've also got a great neighbor from Cambodia who has such a cool variety of fruit trees and vegetables, many unique to Asia, but he's not tech savvy so occasionally I will ask questions for him as well .