Doc oc moves.. how else can the ball be grabbed by the magnet.
There is also a blue rubber pad attached to doc oc and you can see he's attached to an assy.

Can't tell for sandman by the pictures, though it seems he's on an assy too

Sandman will indeed move, but I don't think you'll be able to hit him. In the pictures he's in the lowest position.

No green start button.. guess red matched better?

If a spiderman that has cost 5k$ when NIB still sells for a lot of money today, then ops could sell their old spidermans to collectors and use the money to buy a new one... which will have a high resale value too.. And the games already earned a lot of money.
So pinball isn't that expensive if you buy the correct titles..