Altenator bracket small block gm

I'm looking for an altenator bracket for a small block chevy motor that mounts on the p***enger side? (with a short water pump) this motor is in a 50 shoebox. Help?.?...

 

Speedway has one for about $40.00. I used it on my '40 ford pickup with a sbc. Mounts to intake bolt and p***enger side water pump bolt. Adjusting arm mounts to driver side water pump bolt. Comes with a variety of shims to dial in belt alignment.