'69 4X4 with 350 auto, PS, A/C questions

[lawest]

I am converting a '69 K10 from 6 cyl manual to 350 auto and adding PS and A/C. Does anyone have pictures or information that will help me determine where and how the PS pump and A/C compressor mount and how the crank and waterpump pulleys are configured. Would this set up take a long or short waterpump? Also, I was told that the Crank pulley set up is actually two 2 groove pulleys stacked together. If so I have no idea how the belts would be ran. I was also told that the '69 was only offered with A/C in certain models and that it is different than the '70 model. Any help would be appreciated.