I'm starting to fabricate davits for my 320 w/9' 6" west marine dink, i like the idea of the nautley davits and want to make the arms similar. I have purchased the weaver snap davit quik kit and am going to fabricate the bracket to accept the arm (out of stainless) so far not hard, i need to know the thickness and lenghth used on the arms, my platform measures 7" from the waterline at the transom of the boat i'm not sure how long to make the arms so they reach the water to retreive the dink? I plan on using 1 1/2" starboard and forming it to fit the bottom of the dink any thoughts?:huh: