I recently bought an older Nishiki Prestige frame that's the spitting image of Lamplight's, except that it's totally black. Serial number WE 01898 (filled with white paint on bottom bracket) and below that "03BRY" stamped after the bike was painted (because the black paint is chipping around these characters). It has exactly the same decals as the gray one -- could they have found one more place to put "Nishiki"? -- and the same lame headbadge decal; now that took a lot of imagination!
Mine is 56.5 cm from BB to center of top tube, 58 cm to top of top tube. It also has a sticker from Missing Link in Berkeley (CA). This one had a sort of hodgepodge of components -- headset is the same chrome one as on Lamplighter's, and the bottom bracket too (says Kawamura on cups or spindle). Derailleurs, shifters and brakes all Shimano 600, and a Campy Super Record crankset (including chainrings). The wheels had been replaced at some point I think: Weinmann alloy rim and Maillard hub, skewer and 6-speed freewheel in the rear, and a Schothorst steel rim and SR steel nutted hub in front.
My frame does have the same braze-on for top-of-tube mounted shifters as seen above, but the shifters were the ring-clamp type (Shimano 600). Same gray translucent cable sheaths, though.
I'm trying to decide whether to repaint the frame entirely -- it's not quite as pristine as Lamplight's (I keep trying to type Lampwick, like in Disney's "Pinnochio") but still in decent condition -- or just spray the fork gray and the head tube between lugs, to get rid of two "Nishikis" and the offensive headbadge; and then put a gray panel on the downtube to get rid of two more. Anybody got a real-live stamped metal Nishiki headbadge with the eagle for sale?