Well, good to see your on the "O" side of the payscale. Congrats. You now have to do nothing for your money. JK
Depends like you said on deployment. But remember, it's hard to spend money when deployed. Just stay away from the gambling. I wouldn't worry about that. The only thing I can see is logistics. You need to be here when the car comes in. Other than that, go for it. BAH split in two or even three can be a great deal. Don't know the price of the area but you can find roomies easy. Good Luck.
Don't know how you'll get the 0% financing but the Naval Credit Union may help. Or whatever CU they have.