My group did that first set
last year! If you plan to do it, be prepared for a LOT of work. I sewed all the costumes and it took almost 200 hours because all the gold was hand stitched down. If you decide to make those, I can give you pointers on them.
I went through my CLAMP images I have saved and found you a few options that you might want to try. These were the ones that jumped out at me as good ones for a group that had all the characters you were looking for.
I definitely wish you luck on whatever costumes you choose. CLAMP makes gorgeous designs, but they can kill your brain!