Material cast, by order of appearance:
EPS, 16kg/m3, two 1300mmx550mmx200mm blocs, 25 $
2 fin boxes, 12$
PVC foam, 75kg/m3, 10mm, 12$
Diolen patch, 1m, 10$
Peel ply, 1m, 2$
200g carbon twill, 6m, 100$
100g glass twill, 6m, 20$
Epoxy, Sycomin surf clear 3kg, 50$
300g biaxial carbon, 1m, 8$
microballoon, 200g, 10$
silica, 1L, 5$
pigment, 10$
white primer, 1 can, 10$
clear acrylic, 1 can, 10$
Pad, 15$ (3 pads per 45$ sheet)
+ gloves, mixing sticks and glasses, plastic sheets...

~350$ total.