This is much simpler and less resource intensive now with the introduction of itemducts. Use a servo on the magma crucible itemduct input to whitelist ender pearls, and everything else will flow to the transposer for filling. you can also route the output back into the inferface with itemducts.
The entire infrastructure now needed besides power is 2 ME interfaces, 1 induction smelter, 1 magma crucible, 1 liquid transposer, 6 itemducts, and 1 pneumatic servo.