Joevacs, I hope you don't mind but I'm going to steal your idea and put some cam cleats there. Your boat looks really nice! I also like your idea for mounting the radio. I have an el-cheapo car radio that I bought and can't return -- I now know where it's going. Do you have speakers in the cabin as well? And where do you mount the FM antenna on a boat?
I got a fish finder / GPS for $150 on clearance at Gander Mountain. So I'm going to have to electrify my boat. (currently it has battery powered clip-on lights) I plan to do it using the 12V port on my portable car jump-start thing which I can easily recharge at home.