Try the Yakima model 3 roof racks mate. I've seen a guy talking positively about them on another one of the groups I'm in.
I've looked at it, but not at all keen in the way it attaches. Even if I put aside the mechanical aspect of it, it's ugly and this rack will be attached permanently.
My best option I think, if they come into stock, is the Tessories one. Same mount system as OEM, and low enough price that I can live with replacing with OEM if they come into stock.
I found research on them hard as all reviews seem to say buy OEM, with the extra cash, but can't get OEM!