My apologies. I was caught up doing a massive home renovation project. I am currently using Masterblend 0-12-24, which was discontinued for another mix ratio with less epsom salt due to water retention. I would suggest jacks 0-12-26 as a substitute. For nitrogen and calcium you can use pretty much any form of calcium nitrate. If you want mixing ratios then look up green gene masterblend 0-12-24.
I will admit this is advanced because you are creating your own npk ratios, so be warned. If you don’t understand it then I would stay away from it. This basically follows Athena formulation, but with waaaaay less cost.
Regarding the powders, yes, humic is cheap. I have never heard of dry fulvic though. What color is it?