Rhino Boat Hull Thickness & Tweaks -- 2

I already have a complete boat model in Rhino 7; the geometry is all single-surface and still paper-thin. I now need two things done to that file.

First, give every relevant surface realistic thickness with Rhino’s OffsetSrf workflow. I would like a clean, watertight polysurface at the end, with no naked edges or self-intersections, ready for panel-nesting or CFD.

Second, introduce new hull features—specifically some bulges or other small extensions—to improve stability and spray control. The exact shape is open to your creativity as long as it respects the existing overall dimensions and blends smoothly into the hull.

Deliverables
• Updated .3dm file with correct wall thickness applied via OffsetSrf
• Modified hull showing the added bulges/extensions, fully joined and free of edge errors
• Brief note explaining any commands or construction curves you added so I can iterate later

If you are comfortable sculpting hulls in Rhino and keeping the topology clean, this should be a straightforward job.