To make more simple and easily: Please, make the repair kits universal for a type of gear (weapons or armor) and leveless, or if have a level, to become related with how efficient work, instead tied to a type of gear, related directly of a level of a gear too.
Better if work in a simple way:
Repair kit: Vibro - Each rank of the kit repair better the vibro, losing less durability
Repair kit: Blasters - Each rank of the kit repair bette the blaster, losing less durability
Repair kit: Finesse - Each rank of the kit repair better the finesse, losing less durability
Repiar kit: Armor - Each rank of the kit repair better armor, helmet, boots and belts, losing less durability
This look more simple and pratical, and make each rank of repair kits more plausible, instead one type of repair kit to each type of item in the game with a certain item rank to work.