I have a 90' wicked also but no original fork, the best I can do is give you the frame specs from the 1990 cat. walt works should be able to draw you up a good fork to match your riding style.
size: 19.5"
head tube: 70 degrees
seat tube: 72 degrees
toptube: 22.83"
bottom bracket: 11.875"
chain stays: 17.125"
wheel base: 41.69"
Fork rake: 1.75"