Welcome to the site Jimmy!
As with all old machines, that coin mech needs to be updated anyways, it is junk.
As Tom stated, you will likely have to make your own shelves.
What you read into this site was that only 'complete and working' machines are worth $200 to $300.
Seller only states asking price, it's the marketplace that determines actual value and he will not get $200 if it's missing shelves.
Finally, it is a very nice machine as is, just peel off the decals....... the value will not go any higher after restoration.