Thank you for all the input. I realize that there are a lot of options from a variety of sources that can allow the accesories to be located in a variety of places.
My biggest concern is that I intent to decide about the water pump rotation and related belt type long before I have the engine in the chassis much less with all the space defining aspects of accessory location.
Now that I have decided that I will go with the short pump and v-belts I can plan my engine build accordingly. Once I hav ethe engine installed int he chassis I can install the surrounding parts as needed to decide which brackets and pulleys will work best.
