Well the "W" "V" "U" should be self explanatory, wherever you find three in a row that's missing with similar labeling, it should go there. The "1" point relay should be in the head next to the "10" and "100" relay. For the pop number relay labels, I would start a game and make note of the relay activated when you score on them. Those are probably the relays on the playfield itself.

If you have a schematic you can trace the 7.5 amp fuse and where that goes. Theres three on the inside of the cabinet, another by the transformer. May have another on the playfield too.

Their game is probably missing some too lol. I hope you get it sorted out.