Nice to see another one of these turn up. Your's looks to be a later 92 model with the side routed cables and Saracen embossed drop-outs.
The catalogue shows an early production version with the cables on top of the top tube and different drop-outs.
Mine is an early 1992 version which no doubt used up the remaining 1991 frames and has the same features shown in the catalogue.
The Kili Racer had a Tange tubeset, whereas all the higher specced versions of the steel e-stay Kili range had variations on True Temper tubes. Only the top two in the range had those segmented forks and also had True Temper OX Ultra II tubes.
As to potential colour choices, well the Kili Pro was black, the Kili Flyer was purple, the range topping Kili XTR was metallic silver and the very exclusive Campag equipped, and presumably very rare, Kili Ultra was a gorgeous cyan blue colour.
I've seen these re-done in white and blue too though and they do look very nice. It's up to you though.
I'd stick with the original forks though. The forks legs are well proportioned to the frame and the curve makes them nicely compliant and comfortable. Threaded headsets aren't that difficult are they?
Have a good time rebuilding it. They are a bit heavy but great fun to ride, so well worth it.