We are are currently waiting for our new main sail to be delivered and are hoping  to head for the Exumas next January.

You would have to train them though, and I'm sure there would be growing pains. 

It depends on your “ideal tenant” and strategy once you PCS.Would you be looking to rent to single officers going through training, military families with children, medical corps personnel TDY to Ft Sam Houston for several months, maybe even an AirBnB near Lackland, etc.?

Say if I have $5,000 to work with, is it possible I can get an Airbnb and if so how ?

In real estate, you do not want to entertain a money train or issues and no profit.

Their "Selena" which is foreclosed by Arbor is in east houston near ship channel and definitely in "theHood", their "Sophia" is in Greenspoint aka "Guns-point" and you can't get food delivered there without a police escort.

If you discover that she violates that prohibition, of course, a notice to cure should be delivered right away.

In real estate (and life), the "under promise and over deliver" principle is crucial for building trust and fostering long-term relationships.

Maybe, instead of saving for a house, you save for a job change, whether it will cover your expenses for a few months, while you work a much more flexible job, and look for better additional work, or get training for a job that is more stable. 

Would a a virtual call center where they help you manage and train your own dedicated caller work?