First time orgainc

Hello gc

I have done 2.5 grows now all using bottle ferts but I think it's time to make the switch.

I google some recipes and I'm going to go with sub cools super soil. Here is the list of ingredients.

8- Large bags of High quality Organic potting soil with a coco and Mycorrhizae
1- 25-50 pounds of Organic Worm castings
5 lb. Steamed Bone meal
5 lb. Bloom bat Guano
5 lb. Blood meal
3 lb. Rock Phoshate
¾ cup Epson salts
½ to 1 Cup cup Sweet Lime ( Dolimite)
½ Cup Azomite ( Trace Elements)
2 tbs. Powdered Humic Acid

I can get all the stuff as we have a very good local hardware store that sells most of the stuff and we also have a hydroponics store for anything else I need.

I started all my plants in happy frog and been using roots organic bottles on them. I must say they are looking very healthy but in the long run I feel super soil will be better.

My questions.
This super soil good for veg/flower?

Could I still use my bottle nutes? Instead of once a week maybe cut it to once a month as a tea?

What do you think of this mix?

And lastly how much soil is this going to make? Can I convert pounds to gallons?