To be honest, all four of the IO and RFT Saga variants have been quite hard to find in most areas. As army building figures, these guys get scooped up immediately and in large numbers whenever they're seen by most collectors, which is a big part of their scarcity at this point.
Personally, my tally on what I've found out here in L.A. is as follows:
Dark haired RFT - 6
Red haired RFT - 1
Dark haired IO - 2
Blonde IO - 4
Haven't seen ANY of these in at least a couple months now. I've frequently found the Coll. 2 waves with Aayla, Barris, et al, but almost every time the Blonde IO has already been scooped up...
Best of luck to everyone in finding these HTF figures!