[chumbucket]

Sounds like you've got the general knowledge to look at it with. Like you said, don't assume anything. The motor may not require a rebuild. A well cared for outboard can go many years without needing a rebuild. Just check it carefully. On the plus side; the motor is new enough to have the stainless steel shift rod which replaces the notorious plain steel rust through problem of the earlier generation motors. ;) That's a good thing.
Hope all goes well and you're able to finally get the boat you've been searching for so long.