soil Trying to calculate how much soil I need to make this season

[Proud Marine Dad]

I plan on using eight, 17 gallon containers, ten, 10 gallon Root Pouch fabric bags, four, 5 gallon Lowe's buckets with drain holes and probably a few 5 gallon nursery pots for all of my growing this season. I have a good amount of compost and make my own soil but I am hoping I have enough for all of the above.
I have never grown on this scale so I am not sure how to calclate what I will need. Guess I will have to do some math.

 

[JoynersHotPeppers]

This + that = $$$$ close enough

 

[SadisticPeppers]

I'm going the inexpensive route for mine and using straight up topsoil from Home Depot for $1.50 a bag. Each bag is enough for two 5 gallon nursery pots, and for my needs right now, it's plenty, as I'm using vegetable fertilizer, liquid worm castings and kelp/seaweed mix.
 
Once I get going with a good operation and feel like improving/expanding, I'll do better soil mixes, but because of budget constraints on my end, I kinda have to go the inexpensive route

 

[meinchoh]

I'm going the inexpensive route for mine and using straight up topsoil from Home Depot for $1.50 a bag. Each bag is enough for two 5 gallon nursery pots, and for my needs right now, it's plenty, as I'm using vegetable fertilizer, liquid worm castings and kelp/seaweed mix.
 
Once I get going with a good operation and feel like improving/expanding, I'll do better soil mixes, but because of budget constraints on my end, I kinda have to go the inexpensive route

Maybe get a 3.8 cu.ft. bag of peat to mix with that top soil to lighten it up and help drainage? Only about $10.00..