Just foliage-pro and Bloom work for me, I've used a bunch of different silica supplements over the years but have been using Blue Planet the last few runs with good results, my spring water has plenty of calcium so I never have to supplement it your mileage may vary, the only other thing I always keep around is Epsom salts that I will use if I see any signs of mag deficiency. The the Fox Farms soils I use have guano and microbes already mixed in so I don't supplement those any further. I have never used molasses because I feed salts to my plants, molasses is mainly used to feed your soil and add some sulfur I don't think you would need it. I have also never grown at that kind of scale, most ever was about 30 plants and I don't grow anywhere near that many anymore if I was going to ramp up that big I think I would look into using powdered nutes like Jacks 3-2-1 or something similar that would cut your overhead quite a bit and there was a great thread on that I saw on here not long ago.