What's up GY? I actually stole your idea of the cutting board! I won't be moving it around too much once I have it on there. A few things about the transducer and why I opted to not put it on the rudder. I think once you know this you will understand my decisions.
1. I don't really fish very many weedy areas. That may change now that I have a yak, but willing to find out. I'll definitely keep this in mind.
2. The transducer sits low enough to be in the water, but it about as low as the mirage drive. when the flaps are up. I built it so that I can quickly release the pvcs from the scotty base and lay the set up in the kayak. Not sure how much of a pain that will be, but I am willing to find out. It's rather easy to disassemble.
3. Good idea about the hatch. Thanks!
4. I am also nervous about the cutting board. Once it's in place I will probably leave it there. I went this route because the adapter I bought wasn't the right one for the Lowrance Unit I have. Must have been a wrong description online. Now that I have the unit I will know which fits and which won't.
Thanks so much for the reply!
Oh, and the anchor trolley. I'm going to put one side around the fish finder, and the other on the other side where the anchor will attach. This way when the line is tight from the anchor being pulled it won't pull the sonar. Tested the scenario and it should work alright.