Sea Ray questions.

Congrats! Looks good!
Sea Ray one of the high end boats. You might check for any soft wood in the stringers (if used on that model) or spongy floor areas and transom cracks. The 6 should be just fine if running right and the tabs will help. Docking it in windy conditions could be interesting.
My 19' - 190 HP boat will go 50+ with the 2bbl on flat water. The V-6 in mine makes it a little heavy in the *** so I have to watch the shallows.
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Maybe a helpful link.....
Choose Schematics - Marine Parts Express