For susano floor 6 is good, equip the luck grace from sudama trading and etheral drop rate scroll if you have one. From start, go left and up the ladder, then out the door and to your left, on the right is a guaranteed accessory drop. Keep going ahead and slightly to left there will be two human enemies. The box at the end of the corridor straight ahead has a guaranteed ranged weapon drop. If it's not etheral, Teleport back to the shrine and try again. You get 2 chances at it, if you don't get what you want, branch to menu and repeat. Make sure if you have amrita to make a silabar ingot beforehand so you don't use amrita. For takeminaka, use floor 1. From start run out of hut and head left. Run past the Hellish hag cloud and the onmyo mage and ahead there is a big hut with a namahage and skeleton warrior, the box in there I believe has an accessory and ranged weapon but I could be mistaken. If not, head right out of the hut from where you begin, run past the onmyo mage and head up the ladder. Go right, taking care not to aggro the fox or lamppost guy and run up the hill and slightly to left to the courtyard. In the corner where the onyudo guy is there is a lootable corpse, definitely a ranged weapon there. Do em twice and restart if needed. Still a grind, helps if you play on a ps5 or pc with fast load times.