This is blind engineering at this point since my Livescope system is back ordered, but I problem solving anyway.

I figured out a way to mount the transducer to my boat, I think better and cheaper than all of the systems I've seen from the vendors. Basically, I bought a 60" Minn Kota composite shaft, a Minn Kota endura transom bracket, and two depth adjustment collars. The transom mount fits perfectly on my gunwale, the shaft will be 26" above the gunwale and 34" below the gunwale which just clears the bottom of the hull. the top collar holds this depth, the bottom collar will be just above the transducer and protects the transducer when I raise it up. it will fold over across the bow for transport. I think I am going to run the cable inside the shaft and get a pvc fitting drilled out top and bottom to protect the cable at the shaft ends. $77 total including shipping.

Here are the part numbers:

Minn Kota Trolling Motor Part - COLLAR-DEPTH (ENDURA) - 2061520
2061520 2 $1.44 USD $2.88 USD

Minn Kota Trolling Motor Part - ENDURA TRANSOM MOUNT BRACKET 2991815A / 2771818
2991815A 1 $24.04 USD $24.04 USD

Minn Kota Trolling Motor Part - SCREW-COLLAR/NEW KNOB - 2011365
2011365 2 $0.97 USD $1.94 USD

Minn Kota Trolling Motor Part - TUBE (COMPOSITE) 60" - 2032074
2032074 1 $28.77 USD $28.77 USD
I bought them online from:
FISH307.com
http://www.fish307.com/
Let me know what you think.