Great work on a killer boat!!
That is correct info on the hull sides. They dropped the exhaust below the rub rail when they added the 4" to the hull. I have an '89 also.

Mine sets low like that as well. I have been thinking of putting a platform on it but was curious how it would look and how close to the water it would actually be. I think it looks good. Guess i will be getting one. Who built that one for you?