I don't know if it is as close as possible, but since you are early 50s, perhaps a Wurmslayer would make a good primary. Nice long delay for casting between swings so you don't lose too much melee dps.
I know you said you don't like procs, but maybe a lupine dagger would be handy for the off hand? Otherwise I don't really know.
I suppose if you want to stick with duel wield, late 50s you may want to swap out the wurmy for something quicker/newer (and obviously upgrade that off hand too!).
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