Contact Hipshot and see if they have one they recommend. I think I read on here a while back that they would make an offset lever that would miss the B tuner.
I have modified standard D-tuners to fit in the E position on 5 strings or 4 strings strung BEAD but I'm not familiar enough with Ibanez to say if it would work.
Check out post #4 in this thread. It gives some details of what had to be done.
Hipshot Bass Xtender: lift instead of drop?
mech