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Shimano silver would be my first choice,
I might turn down purple one, but other than that the teeth are the most important thing.
You must have a large stash of them, or is just Rebas you horde;-)
***************** update
I have just nicked the 32T 94bcd 5 bolt black TA ring from my everyday ride.
I wouldn't refuse another TA ring.
Still got plenty of rebas oddly. I'll have a rummage, compact 5 arm is not something I have on any builds apart from the clockwork but I think I have some.