Well the price of a batch can be as cheap as 2 products up to 8 or 10 products in your tea. It all depends on what you put in and the amount your making.
Example:
Water
Worm tea
Molasses, coconut water, brown sugar…(natural sugars)
Examples of amendments:
Worm tea
Worm poo
Molasses, coconut water, brown sugar…(natural sugars)
Kelp meal
Oats
Insect frass
Humic Acid
Fulvic Acid
Blood meal
Bone meal
Alfalfa meal
Compost
Mushroom compost
Garden compost
Animal poo (chicken, cow, horse…herbivores)
Fish Emulsions
Ect…ect…
The tea can be very easy and complicated. You make sure you have a good air supply. And cultivate the tea for atleast 24 hours.
Being in the middle of nowhere, have you heard about Bio Nutrients (plant extracts) ? You can make it from the weeds from your garden, banana leaf sprouts…
I takes about 8 or 9 days to make. Depending on the surrounding heat of the container and the fermentation process.