Lew....not to worry!! This is CSC, no need to apologize if you think you are on the right track! I've got 3 x 10 cypress standing on edge on the rear bunks and 2 x 6 pressure treated laying flat on the front as guide on bunks. We all have what we think is the best way to "skin the cat".
Heck I've towed my clunker 23'er back and forth the the Keys a minimum of 30 times using this set up, what ever works!!