There is only so much you can tell from pictures. The trailer looks clean and well prepared for selling. There are a few items of concern for me.
1.In the picture of the two wheels it appears that the wheel on the right is bent in and not in alignment with the other wheel. If rgat is true, the fix for this would be to replace both of the axles. This would cost you a couple of thousand dollars. It could be just the angle of the picture, but it does not look right to me.
2. The RV refrigerator has been replaced with what appears to be a dorm fridge which only runs on shore power. This would limit you to stay only in placed with electric hookups.
Further inspection might find other issues.
Wally Byam Airstream Club 7513