Looking at this Chieftain 21ft, what questions should I ask?

[redneck joe]

I get that, all the boats I've bought were pretty much a basket case so I knew what I was getting. They've done some serious work on their old Chief, any insight into why they want to sell?

Chief looks great in the pics, only thing I can see that you may look at closer are the trailer bunks, appears to be raw wood and I can't tell what, if anything is on top of the bunk in the pic.

there was plastic on the bunks.