Nope, still in production at this stage.
AJ Racing can give you a quote on the Spoon calipers. I'm not sure if it'd fit the ASpec rims, if you have the offset and measurements, that'll help.
Why I chose Spoon? Simple, if it's good enough for Spoon to use in their 24 hour racing ... It's good enough for me. Not to mention, they're made by the same caliper manufacturer on the OEM calipers.
If this is a street driven car, I wouldn't recommend getting replacement calipers. Look at better brake pads, braided lines, brake fluid instead. The OEM calipers are well enough to handle most application usage.