Directly from them.
The stuff is roughly $1 per square inch. Digikey has similar stuff.
-- John Larkin Highland Technology, Inc picosecond timing precision measurement jlarkin att highlandtechnology dott com http://www.highlandtechnology.com
Some precision power resistors were made with metal-film on porcelain tubes with V-groove helix windings; a grinding operation leaves metal in the grooves and you just stop the grind when the resistance is right. Look closely, you can see (under the paint) where the mass-produced 'coil' is.
Somewhere out there, a resistor manufacturer has the machinery to make your dream gizmo, you just have to find her/him. And convince the assembly line to electroplate conductor on top of the resistive metal layer.
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