3d models are .gr2 files..
here's some of their ID's
["JT_ARCHER_GUARDIAN"] = 1285,
["JT_KNIGHT_GUARDIAN"] = 1286,
["JT_SOLDIER_GUARDIAN"] = 1287,
["JT_EMPELIUM"] = 1288,
["JT_TREASURE_BOX1"] = 1324,
["JT_TREASURE_BOX2"] = 1325,
["JT_TREASURE_BOX3"] = 1326,
["JT_TREASURE_BOX4"] = 1327,
["JT_TREASURE_BOX5"] = 1328,
["JT_TREASURE_BOX6"] = 1329,
["JT_TREASURE_BOX7"] = 1330,
["JT_TREASURE_BOX8"] = 1331,
["JT_TREASURE_BOX9"] = 1332,
["JT_TREASURE_BOX10"] = 1333,
["JT_TREASURE_BOX11"] = 1334,
["JT_TREASURE_BOX12"] = 1335,
["JT_TREASURE_BOX13"] = 1336,
["JT_TREASURE_BOX14"] = 1337,
["JT_TREASURE_BOX15"] = 1338,
["JT_TREASURE_BOX16"] = 1339,
["JT_TREASURE_BOX17"] = 1340,
["JT_TREASURE_BOX18"] = 1341,
["JT_TREASURE_BOX19"] = 1342,
["JT_TREASURE_BOX20"] = 1343,
["JT_TREASURE_BOX21"] = 1344,
["JT_TREASURE_BOX22"] = 1345,
["JT_TREASURE_BOX23"] = 1346,
["JT_TREASURE_BOX24"] = 1347,
["JT_TREASURE_BOX25"] = 1348,
["JT_TREASURE_BOX26"] = 1349,
["JT_TREASURE_BOX27"] = 1350,
["JT_TREASURE_BOX28"] = 1351,
["JT_TREASURE_BOX29"] = 1352,
["JT_TREASURE_BOX30"] = 1353,
["JT_TREASURE_BOX31"] = 1354,
["JT_TREASURE_BOX32"] = 1355,
["JT_TREASURE_BOX33"] = 1356,
["JT_TREASURE_BOX34"] = 1357,
["JT_TREASURE_BOX35"] = 1358,
["JT_TREASURE_BOX36"] = 1359,
["JT_TREASURE_BOX37"] = 1360,
["JT_TREASURE_BOX38"] = 1361,
["JT_TREASURE_BOX39"] = 1362,
["JT_TREASURE_BOX40"] = 1363,
the only thing I don't like when using MOB ID as an NPC is some Homunculus who attacks/aggressive always get near them LOL.