Ideas/Recommendations for interior refitting

[gargrag]

My wife went crazy and removed all the molded headliner, and I spotted some delamination and some leaks that we corrected
Now I'm trying to figure out how to finish the project, with something that looks decent, and we can handle

Simple - I didn't. The master line let some paneling hang low so I could trim it afterward to match the existing contour.
Note the master pencil line form the upper end of the plank. That pencil line IS straight.

This is looking amazing, what are you planning to use to finish that bottom. end of the ceilings (where the portlights are installed, I don't have any remaining wood, and I don't know exactly how to buy it

 

[Tin Kicker]

This is looking amazing, what are you planning to use to finish that bottom. end of the ceilings (where the portlights are installed, I don't have any remaining wood, and I don't know exactly how to buy it

I have the original wood trim for the top and ends. For when I get to the bottom, there are various versions of outside corner trim molding.

Royal Mouldings 1 in. x 1 in. x 8 ft. PVC Outside Corner Gunstock Moulding 0516508069 - The Home Depot

This 8 ft. x 1 in. x 1 in. Cellular Vinyl Interior Outside Corner Moulding will go well with many homes' decor, adding a stylistic touch to a wall corner. It comes prefinished in the color gunstock. Adding

www.homedepot.com

The vinyl beneath the side decks was shot so is being replaced by PVC sheet which has beene waiting patiently in the shed:

Veranda 1/4 in. x 24 in. x 4 ft. White Reversible PVC Trim/Sheet H060XWS6 - The Home Depot

The 48 in. Veranda HP Reversible Cellular PVC Sheet is a durable alternative to wood products. It is engineered to resist expansion and contraction and has a hard surface that protects against dents and

www.homedepot.com

 

[Loren Beach]

Be sure that your choice of flat panel for under the side deck will not sag. This is common on other boats viewed. Even OEM's get this wrong sometimes.
Those teak moldings that cover the rows of staples and trim out the edges are expensive to replace. Treat them gently, and it broken epoxy back together. On our boat the teak batten that covers the bottom row of staples and fabric edge was designed to drop down about a quarter inch in front of the rolled-over vinyl just to provide a smooth transition to that long edge.

 

[Rocinante33]

These FRP panels might be good for our boats. They are commonly used in RV construction. Easy to work with.

Panolam 4 ft. x 8 ft. Almond .090 FRP Wall Board H090ALT48096CF

FRP wall and ceiling panels from Panolam Surface Systems for those high traffic installations requiring durability and high sanitary standards as well as moisture, mildew and chemical resistance. These

www.homedepot.com

Glasliner 4 ft. x 8 ft. White .090 FRP Wall Board MFTF12IXA480009600 - The Home Depot

Fiberglass Reinforced Panels are an ideal wall liner for interior use in restaurants, kitchens, regrooms, break rooms, and any locations requiring low-maintenance, washable walls. Made of a durable polyester

www.homedepot.com

 

[Loren Beach]

The installation instruction calls for gluing. Looks like you would need some backing to give it needed stiffness. Epoxied on battens, at the least.

 

[Rocinante33]

The installation instruction calls for gluing. Looks like you would need some backing to give it needed stiffness. Epoxied on battens, at the least.

True. Not good for headliners. For the panel around the ports it may be useable, though. Simple marine adhesive might work.

 

[David Grimm]

The original teak is obtainable! I used 1/4 inch teak to repair around the large port in the head. It came out so good the best of the best wouldn't be able to tell it was done.

Teak Veneer Plywood :: Teak Ply Project Panels -- 1/8" to 3/4" Thick

Teak veneer plywood generally does not qualify as being a true marine grade ” That said our teak plywood is a high-quality exterior-grade sheet laminated with a surface veneer of FEQ teak that s very suitable for marine cabinetry table tops teak accessories and the like -- so long as your end

www.buckwoodcraft.com

 

[Christian Williams]

FWIW, Rockler has sticky-back veneers that can turn any piece of plywood into whatever wood you like, and they take varnish well and hold up fine. Good for small jobs, I use it a lot.

 

[Martin King]

Here's a peek at what I did: https://ericsonyachts.org/ie/threads/interior-rehab.4500/