Surfboard Blanks
I am currently using US Blanks blanks.

Manufactured in California and available in Hawaii
via Fiberglass Hawaii
Stringers
Stringer material is spruce, cedar or redwood in 1/8" - 1/4" in thickness. . All the blanks are glued up with my own custom rocker especially designed for these designs.
Fabric

Fabric is 6 oz. flat weave volan and 6 oz or 4 oz flat weave silene in combination. The flat weave holds less resin and gives the board more flexibility and life. The fabric also has higher tensile strength that twist weave fabric of the same weight. In small surf this is particularly important for flex to access the sensation of power, particularly in weak surf.
Resin
UV and Standard Surfboard Laminating Resin via Fiberglass Hawaii.
Finish Coat
My personal boards do not have a finish coat on top or bottom to keep the save weight. A more practical approach to maximize longevity is to finish coat the bottom and leave the deck unfinished. . Finish coated deck and bottom is howeve the most durable.
Wet sanding
I suggest that the finish coated bottom be wet sanded with #320 or #400 wet/dry sandpaper. Use water and sand in same direction as the stringer from nose to tail, tail to nose, do the fins and rails too. You will notice that the water will stick to the wetsanded bottom and feel very different from the finish coated and polished bottom. To me, the result feels faster, more under control and more conected to the wave. You can try it on any board. Ride it glossed first, wet sand the bottom and try it again to feel the difference. The board can be freshened periodically in this way if it becomes dead and sluggish.
Fins
The fins I use are flexible and adjustable. They are made from the same volan fabric which enhances their flex and longevity. The adjustment is necessary to get the correct release from the fins when changing direction or during particularly long turns. The position seems to be a bit different for everyone so adjustment is an absolute necessity.
Fin Boxes
The fin boxes are from Fins Unlimited aka Bahne.They are reinforced with two layers of 6 oz. fiberglass fabric layered over the top and onto the bottom of the surfboard. They are quite secure. It is essential to be able to adjust the fins to the feeling and reaction you want from the board. There are small marks at the edge of the fin box to note the position.