March makes a nice polished billet kit to mount alternator in stock location with adjusting rod, kit is about $90 from jegs. There are other kits online for less but their not as nice. FMS and March both have an underdrive polised aluminum V-Belt pulley kit that looks awesome and provides a bit more power. Serch online if going cheap, if not check Jegs or Summit. I bought the March kit for my small block, trust me you wont be disapointed.
As an alternative, you could always go about it the way that I am, by using one of those A/C delete pullies as an idler pulley ... although it's not as pretty. (I'm only using this method because I already had a UPR A/C delete pulley lying around, anyway.) Just loop the belt around in essentially the same manner you would if you had a non-A/C car, except the A/C delete pulley will be in place of the P/S pump (and slightly higher, being in the A/C compressor's original location).