see my webpage for some pics of me removing my sunroof. Removing the sunroof isn't that hard at all. The glass you see is actually not even connected directly to the roof of the car. There is a tub that the glass slides back into. The tub is what attaches to the underside of your roof with about 8 or 10 10mm (or 12mm) bolts.

I pulled my sunroof out on accident when I was trying to Dynamat my roof. Ended up dynamatting the fukc outta the entire sunroof assembly, too.

So if the integra and or CL has the same bolt pattern on the tub, swapping the two would be cake. Just take out the headliner, undo the bolts and screw the other sunroof tub in there.