Nice score !
My WSM is about the same vintage and cleaned up very well.
Paid $100 and it had a terrible, nasty chip in the lid.
My porcelain repair is in the archives here and at TVWBB.
And it needed all new daisy wheels.
Might put the updated legs on it and use the old legs for a Mini-WSM project.
Might shoulda bought new !
<insert headslap>