Greetings "i-Members", hope all are well. I have an upcoming retro-fit project on my Duranautic 16SST to accommodate those in our group with special needs, specifically the few with physical disabilities. What I'm looking for is a structural diagram of the inner hull under the flooring so I can securely anchor the commercial grade stainless safety rails I have. This retro has raised a few eyebrows however, there's absolutely no reason these kids should miss being out on the water here in R.I., there's too very much to SAFELY enjoy! Any intel would be greatly appreciated as I'd just rather avoid taking up the floor if I don't need to. Thanks in advance . . . JJFIII