USDM Gasket/Pulley/Pump Replacements?

[Veen]

Got a couple gaskets I need. First one is the CA18DET downpipe gasket on the turbo side. I know the catalytic converter side will just be from any S13, but is there a nice easy gasket choice part number I can go spout off down at the dealership for the CA gasket?

Second is the HICAS pulley. I can't find a CA HICAS pulley, but will the KA HICAS pulley work? It looks the same, I just can't get the pulley off my current unit, but I'd be more than happy to just buy a new one and slap it on there.

Third, and I know this is definitely a longshot, is there a USDM AC Pump replacement? I was thinking the 88 Pulsars, but last I checked ca18det.org wasn't too specific on that, just saying "99% of the time a Pulsar part will swap." At least that one's not too urgent though, what with it being winter and all.