In the uppermost levels of the dungeon, there should be (randomly generated and not guaranteed) fake bones piles which contain starting equipment from some role. Gear is eroded or biased towards negative enchantment, most magical items are removed, and perhaps one or two non-starting items are added. Then the whole pile is mostly cursed as usual.

Note: This has been implemented in 3.6.1 but differently; it places random cursed items instead of selecting starting gear.