If you think about making a Venture a serious sailboat, one that can hold power and sail and plow waves..
START here:

pop that rail.
wrench it drill it hammer it

Do we see a problem here? somebody tried to put some sealer under the rail, and a little when it was screwed together- but there is a big air gap between the top and bottom halves of her hull shells! air and water can slip right into her beltline seam! Causing corrosion, large tolerance causing flexion fractures.

Furthermore, under those big swaths of white inner liner is completely hollow! boom bang creak crawk.
No biggies, lets see what that prybar does now;

Aha!
now we start collecting our cans of greatfoam and bathtub resin because we are (eventually) going to make this three piece suit a unibody boys and girls!
Stay tubed.


