Forgotten Realms Dungeons & Dragons AD&D Ruins of Undermountain 1060 TSR Boxed

The ruins of undermountain advanced dungeons and dragon second edition
This set is close to complete, everything included;
128 page book describing undermountain
32 page adventure book
map level 2 (should be 4 maps, I only have the one)
8 trap, treasures and trinkets cards
Everything missing;
8 monster cards
level 1, 3, and 4 maps
Box shows some wear and seems have been taped. Please let me know if you have any questions