Bill, Same problem; two different thought processes! I made my mockup and checked prop depth based on the original fixed motor mount. Then I removed the fixed mount, and started playing with the location of the lift mount. Somehow, I never thought of using the existing holes as a reference point for the new mount - as I recall, the spacing was different. The lift mount is the way to go, as you will discover as soon as you are in the water again. No more dragging the prop through the water on a starboard tack............... I am adding a motorcycle battery for 12 volt power for my GPS and for my SONY CD player. That puts weight up forward even if it is only about 5 lbs. I will mount the battery in the forward compartment (in a battery case I'll make). The fuse panel with power socket was going to be installed in the wall next to the porta-potti, but someone else had it mounted up near the cabin ceiling in the aft corner of the cabin. That makes a lot of sense - no stooping and crawling to reach the plug. When I start working on the boat, I'll have to check out that idea. Connie