i50-compatible 20 degree tilted depth sounder

[kieffer]

I have an i50 standalone depth instrument onboard and am looking for a compatible depth sounder with a 20 degree built-in tilt. I've tried two separate P79 units, but my hull is too thick for them to operate reliably. I just ordered a "P19-20-FISO" depth sounder only to find that that unit has been discontinued and the unit the retailer sent me was a P319 with 0 degrees of tilt.

Is the B60 with 20 degrees of tilt compatible with the i50? Any other options? I'm open to anything that's compatible, bronze or plastic.

Would be very much obliged for any help! Thank you.