Today I had time to check it out. There was nobody there and the shops to the right and left where also not open. The place is pretty big so I could not see what was in the back. I think there are a good thirty machines there mostly slots, belgium bingo's, early solid state bally pins and generic cabs. Non in great shape nor rare / valuable. The only cab that looked kind of interesting from the side is the one on the picture below. Next step will be contacting the owner of the property.