Do the following to repair any item to the player's current repair level without using any caps. You will need the Confirmed Bachelor perk and enough caps to cover the repair cost of the item. When you arrive at the Mohave Outpost to get the pardon for the new sheriff of Primm, during the conversation with Major Knight a Confirmed Bachelor speech option is available. Select it, and whenever you do repairs through him, the item gets repaired to your repair level but you do not lose any caps. Use this with an unlimited caps trick, and your player can have all items at 100% condition.