Need poly-v pulley for my project

[kencombs]

I'm looking for suggested donors for a crank pulley.  My plan is to add a pulley sandwiched onto my existing v-belt pulley to be used to drive a power steering pump and A/C compressor.

 

My present setup uses a hub on the crank.  That hub as a shallow pilot protrusion that centers the single 3/8" wide belt pulley.  Pulley and hub are both drilled, hub tapped, for 6 attaching bolts.  The bolt pattern is not evenly spaced and only fits one way.

 

What I want to do is add a poly-v belt pulley on the front.  So I need a pulley that is not very deep overall, ideally just a 5 rib belt wide with about 5/8" protrusion to one side.  And the center hole smaller than the current belt pulley so I can open it up to precisely match the current hub.  Then redrill the attaching holes. Hole location doesn't need to be precise as long as the bolts go in since the hub centers it.

 

Anyone know of a pulley used by some car company that may fit that description?   The AC compressor I'm planning to use is a Denso from a 1995 Chevy Tracker,  just because it's compact, uses a narrow ( 5 rib) belt and mounts with two ears like an alternator.   And, I already have it left from a previous project.  The mounting allows it to be used as the belt adjustment point.  I'll select a solid mounting power steering pump.

 

I've looked at a lot of pulleys online, and a few sorta look like candidates, but none of the catalogs list actual dimensions so I thought I'd ask here.

[Tooljunkie]

You might want to browse the websites of the companies that make serpentine drive kits for older vehicles. They typically have the technical data listed for the crank pulleys.