high man, i decided to answer your pm here because that way the information is out in public where it can maybe benefit others that may come and read your thread, ...and you should post your update pictures here in your thread because most people won't look any further than your thread, and it's in the thread where you post your questions, your insights, your experiments and your hopes and this is where you will get the most help and the most encouragement and this is also where you will get the opportunity to help other beginners not yet here, by then you won't be such a beginner and all your trials and tribulations will be documented here for you to use as examples.
"...i don't know how much coco that is as i've never bought it that way but here is a link to a 5kg brick at Amazon for under $17.00 that will give you more than enough for the first cycle at least, probably 2 cycles and then if you recycle your coco you can do a third and fourth cycle with the same coco.
COCOTEK 5KG BAIL
...as far as buckets go almost any watertight container can be made into hempy's and unless you plan on growing trees 2 gallon buckets should be plenty.
United Solutions 2-Gallon Plastic Paint Bucket
...you'll also need to test your ph pretty regular because while the MaxiBloom is great, it's also highly acidic so you'll be needing ph up solution as well. ...and you don't need a ph meter if you don't already have one, a drop tester works just fine.
General Hydroponics GH1514 Ph Control Kit
...you should also get some sort of ppm meter and i bought a truncheon from Bluelab because of the many reviews i read and i've had it now for nearly a year and i don't regret spending the money one bit.
Blue Lab Commercial Truncheon PPM / EC / CF Meter
...and i don't use KoolBloom, i've got it and i HAVE used it but i'm still getting my op dialed in and so far every time i've used a pk boost i get foxtailing, ...with the powdered KoolBloom more is definitely NOT better.
...i'd recommend you do at least 3 or 4 cycles with just the MaxiBloom so you get a baseline on what it can do before you begin to add boosters like KoolBloom, that way you'll know for certain if the booster is actually doing you any good, believe me, the nute company's want you to buy as many additives as they can convince you you need.
peace, bozo"