Here are a couple pictures of an LSS transducer mounted on my PIV with a manual Slidemaster jackplate. This is at least the second one that Scap at Transducer Shield and Save has built for a PIV, I also used their standard LSS trolling motor mount on the front. I did not use the Lowrance L shaped mount, this one is much stronger. It might not look like it in the picture, but the mount is machined to set the transducer level with the hull. I have no idea what the downimage transducer looks like, but Im sure Scap would machine a mount to go on the jackplate if you cant use a shoot through one down in the sump. Hope this helps, Mike