I am adding a third toon to my 2006 20' crestliner. as it set way low in the rear. 90 horse merc 4 stroke toons almost completely submurged. I have found a transom center tube that is 2" larger than my 23" logs. It however is 12" longer than my other logs at 19' my thinking is that I should set it even in front with the other logs and the transom 12" longer in back to get the motor in cleaner water .Center transom is way stronger than factory motor pod>I alsu plan on 4'x8' sheet of alumum sheet 1/8 to act as skinning and to transfer thrust more evenly to boat. am I on the right track ?