Okay I was making my donor kits, when I got to my 4th and 5th high donor ranks, which are protection 4 and sharpness 5 are max. In the config files, I made my 6th donor rank protection:6 durability:3 and swords sharpness:7, when I got on my server, put myself the rank that has the kit, the armour and sword was maxed out on protection:6 and sharpness:7 they became protection:4 and sharpness:5 I need help if there is a way to bypass the limit.
Try getting the plugin Tim enchanter, it lets you enchant 1-127 levels. If you can't find a way to add the over enchanted item to the kit in the config, try getting the plugin kits, this allows you to make a kit in game. If you have any more questions, i'd be happy to answer them!