This is why I LOVE being 15 years in--because there is light at the end of the tunnel and I can actually start to "plan" for what we will do when he's done. Sure things could change--every time I turn around he's got some new idea about going to work for some three letter agency--but I love that we're close enough to retirement that we can actually start to think about "what's next" with some reality.
SthrnZeta--it really does sound like you've got everything covered. And I still wouldn't be surprised if there was a holiday proposal, despite his reaction to people thinking you're engaged. That might just be because he doesn't want other people to "spoil" the plan.
We got married and he left the next day for a 6 month deployment. Quickie and unusual wedding situations are part of the special fabric of being a military spouse.