I used a white polycast acrylic. I used 4 screws & 5200 to seal.Everything screws to this plate not thru it. I made it large enough to mount other Toy'z. I can move the transducer around to adjust also.(Worked 1st time where its at) I just didn't want to put a bunch of holes in the New Transom.This way everything will be located in 1 place.
So far it has worked out.
Scream'n Reels'
There may be more photo's here.
83' MA Seacraft