Hi Arron, while anything is possible, not sure the work involved would be practical. I have both regular sunroof and Cali tops on different cars and have pulled bothe the sunroof cassettes and the Cali soft tops off. The mounts as you can imagine are different as well as the obvious hole in the roof.
Prolly would be easier to cut, swap and reweld the roofs. Personally, I'd look for another 98 or 99 Cali myself rather than do the mod.
May want to get the top, motor and headliner tho off the wrecked car for when you do find a Cali if it is all in working order. The tops alone are good and valuable finds for a Cali owner.
Good luck!
