I'm growing in 100-gallon bags, using a rich loamy compost. I'd like to budget for the season, and buy what I'll need in bulk. I'm planning on using EJ plus azomite and maybe a few other things... Is there a place or a method to help me predict my total costs & needs? Also, any advice on EJ is welcome. I've read the website info etc but I'd love to get some tips from experienced growers. THANKS!