There are very skilled fabricators all over Latin America and SE Asia
. In Malaysia
for example. While they don't work for fishheads and rice the price
will seem equivalent to the westerner. The work can be as good or better than anywhere else. Actual experience with the styling of western yachts may be limited so you will want some good drawings or sketches.
The amazing thing about even moderate sized towns in Asia
is the availability of supplies. There will be streets jammed with specialty metal and hardware
shops where you can very likely find any and all basic materials. If they don't have it they will scramble to get it. And the price won't make sense to a westerner used to being completely ripped off by the 'supply chain' that converts 1 cent bolts to 1 dollar marine fittings.