Z...,
If you can afford the payment & some storage charges, I would delay making a final decision until you have bootcamp, basic training, and your first cruise or two under your belt.
Reasons:
You will be a different person by that time, and your decision will likely be different than now.
Also, these cars are on their way up in value, and yours will not sell well with the engine troubles, you will LOSE money in that deal, for sure.
It is a great car, and you will want one again some day. This is your best opportunity to have that car.
Good luck, and thanks for being willing to serve your (our) country...