This may not be a popular response or one that you want to hear or even any of my business but it sounds like you may be rushing into this. You are asking for advice because you don't know what you want you just know you want to buy it today so you can fish tomorrow.
Think about how you are going to feel when you buy that boat today and then go out tomorrow and don't catch a thing. And now you have a boat payment for several years.
If you are just wanting a small boat with 25hp or less then there are a lot of good used ones out there. Take some time and look around.
For the price you are going to pay for an '06 you can buy a lot bigger glass boat that is used.
By the way, I don't know what depth finder he is giving you but I can about gaurantee you that its not because your military, it's because he knows he's got a live one and he doesn't want you to walk away from the deal.
Back off give it a few weeks, don't buy quickly just because you want to fish tomorrow. An informed decision is better then an impulse decision.