Since it appears Black Dragon is no longer carrying parts for FC's, where else should I look for various parts to fix my car?

I am hoping to be finishing my engine transplant and I am going to be needing a sensor or two and a new A/C idler pulley (bearing). Just wondering where a good place would be to get these parts and other similar items without going to the stealership.

 

Mazdatrix, rockauto, there are a bunch of places that still sell stuff for our cars. I just liked Black Dragon because they had a paper catalog.

 

The want to buy/ for sale section on this forum. Your bound to get it cheaper on here than any store imo.