Hey gucci...I was wondering what is your nute sch going to be like? What is going to be your base nutes? Also do you think a 1/4h chiller will be suffice for each 16 site UC? I suggest try a 1/2 hp chiller and run cool coils in both systems...you will save in the long run because you will draw less amps and I think one 1/2 will be less then two 1/4hp chillers plus the heat from two chillers will be greater then just one 1/2 depending if your chillers are in your room or not? Every thing looking good so far...man you do some clean work...some of the cleanest work I've seen on here...much props and good luck bro.
Hopefully someone can chime in but there was a cheaper version of the cool coils that cost like 55 bucks a piece instead of 150.... Ill look into that if no one knows off hand. I would agree with i love pUC.... go with a half and save some money :)