I'd go down to the local nursery and get a bag of their house brand potting soil, and use that as a base. You can use peat, but be aware that it's acidic and you'll have to lime it. Manure will get you thru the veg phase, no prob. It is a nute in and of itself.
You don't have to have "Name Brand" stuff. You will get just as good if not better using other, more readily available stuff. Rather than go thet route you're going, maybe you want to consider getting the soil I mentioned, some earthworm castings, a bag of Espoma BioTone Plus, and a bag of either Espomas Kelp or Bone meal, all of which you can get locally. Mix them together, and water from then on, supplementing with the occasional tea.
You are chasing your tail trying to interpolate PPMs in soil. There are way too many variables that will throw off the PPM count to be a reliable indicator of the nutrient content. pH shouldn't even be an issue there either. Soil stabilizes pH if mixed properly. Mix the soil, take a sample and water thru it. Read the pH. If it's low, add lime bit by bit until it's where you want it. Lowering a high pH is a lot harder than raising a low pH. Once the pH of the soil itself is established, you shouldn't be able to fuck it up if you stick with organics. The runoff pH will be an INDICATOR of the inside soil conditions. To get the true pH of your soil, carefully dig a spoonful out from the middle and put it in a jar with enough distilled water to make a slurry. Read the pH of that.
BTW, there is nothing wrong with Miracle Gro. It's just not cool enough for some people I guess,
4100!!! Holy shit. Im way off. This is what I mixed up. What should I do to make it right?
