Engineering an Orca is on my short list of things to do next in the game.
After spending a couple of days in a conda, I took the passenger cabins out of my Orca and took it out about 1600Ly or so and back last night. The difference in jump range is not significant enough to ever have me back in a conda. My Exploraorca jumps 44Ly or so, boosts to over 500, and handles SO much better in normal space and SC that I can't see me ever going back to a conda. YMMV...