Guys i had my own server i set it start from 80lvl i want to go 85lvl fast (killing 6-7 mobs) and after to go 86.87.88.89 take exp only from pvp,rb,events....Thanks for watching my post(If any1 know i want to make it for free to for money)

Check the functions where it gives EXP where you kill a mob(Maybe in L2MonsterInstance), and add a limit, if a player is 85 level, then it won't give EXP. and same with pvp's, make it check the level, by using getLevel function, and make it add some Exp, and you will also need to increase the EXP Rate if you want to be just 5-6 mobs. About RB I am not sure how you could make it, just think some ideas.