: I`m planing to adapt a Nick style coaming to my S+G.

: Can I get some guidance on how high the finished coaming should rise above
: the deck, and some ideas for coaming lip dimensions?

Coaming height should be a minimum of 5/8" to the bottom of the lip and the lip should be 1/2" or more deep. If you made both dimensions 3/4", that should work well.