Nothing really, you have the gear, you just gotta get down a good strategy and practice it now. Only gear that would be better is a 6ll pair of gloves. Good luck, let us know if you beat him!
since you already have exceedingly high deadly strike, i reccomend soulspurs.
if you use eth, max zeal is not important, above level four it only gives 10% increases in attack rating, you might want higher level holyshield for better smite damage, and less dex required for max block, higher level charge might help start duels off better also.