I would be the last person to discourage anyone from trying something new...in
fact, you can use my "concerns" as motivation ... in a sort of "I told you
so" scenario.

There is a "clunky" looking sectional boat (plastic), that has a removable
skin, if that is the way you plan to go about it, and that seems the easiest way..

https://www.foldlite.com/

In that event, full bulkheads won't be needed, just reinforced cross sections
that butt and bolt together at the section take-apart connections, and then
the assembled frame can be slipped into the skin.

Now that I think about it, perhaps this type of SOF construction does have
some redeeming qualities... I could see a small SOF sailboat being built
this way due to the additional rigidity of the sectional frame.

Regards,

Tom