So it has to be unicrown? That kind of fork is an 80's thing, so you might be best looking for something used.
These are the chrome forks I can think of, all of which are lugged (Price/Type~$12/Axle-to-crown/Offset):
Soma Straight-Blade ($150/1" or 1 1/8", threaded or threadless/365mm/41mm or 38mm):
Soma Track (~$130/1" threaded or threadless/ /41mm or 38mm):
Origin8 Track ($40!/1" or 1 1/8" threaded or threadless/ / 38mm):
Spicer Track ($125/1 1/8" threadless / 365mm / 43mm):
Bikecult ($75 / 1" threaded / / 43mm):
