Will this denso alt. work?

I have found in my stash a denso alt. for a 1994 Toyota 4Runner. How do I determine if it is internally regulated, and where can I find a normal v-belt pulley for it? Currently it has a serpentine pulley. It looks just like the other denso alternators that folks use to convert their big blocks otherwise. THe picture I have shown is exactly what mine looks like. Thanks for any help!

I run the 88 version, has V belt and it is internally regulated

Two common diameters;
15mm (0.5906") and 17mm (0.669")

PWM-181 2.8" OD, 0.669" ID Includes bushing to reduce bore diameter to 0.5905 in.
Summit Link