You can raid the base stores in one trip. Go to the base equiped with only a amulet of glory. In your inventory bring a tinderbox, 16 nuture runes, a fire/lava staff, 16 adamite ores, and 2 coal ores. Use melee prayer to get to the hideout. Burn the 100 magic logs, use the superheat spell to convert all the coal into adamite, put the runes your inventory, balance the weights on the statue and get out using melee prayer or tele once through the door. Nothing left, one trip.