Are you against using typical brewing equipment? You will end up with better and likely cheaper equipment by using things specifically designed for brewing.
A basic starter kit will give you all you need to start brewing 5 gallon batches. You can add additional fermenters later. They make them geared toward beer or wine. Linked here is an example of a beer kit.
https://www.morebeer.com/products/homebrew-starter-kit.html
I am going to be using some regular things, like the Airlocks, and I will probably make a Yeast Starter and with eventually get a Magnetic Stir Plate and everything so I can do that. And I will be using Yeast meant for this, and Fruit meant for this. I am just going to use my own containers.
That's way too much for 5 Gallons. I have already used both a Carboy and just a Tampico Bottle, and as long as the container is Polyethylene it should be ok. And I am brewing for 3+ people regularly, and then possibly other people as well. So 5 Gallons for $70, and only being able to brew 1 thing at a time at that size just won't work.
I am probably going to get a Blue Polyethylene Drum and do 55 Gallon batches of Cider, and then get 2x 6 Gallon Carboys for Beer and a few 5 Gallon Buckets. All I will have to do is get something to make holes in the tops, and then Caulk, then I will Caulk the Airlock into the top. Or I will use a tube and do the tube that goes into a container of water method, and then Caulk the tube to the container. And I will make sure the Airlock or Tube are pretty much Airtight in the hole already and I'll put something around it before I Caulk to make sure that it doesn't get on the inside of the container and leech into anything I brew.
That way I can make a 55 Gallon batch, and we can get some kind of container to move maybe 5 Gallons into at a time or a Keg, and then bottle some with stronger yeast to make Cider Champagne, and bottle the rest or put it in some kind of container and put it in our basement (they get cold here in Colorado). And while that is going I can make 1x or 2x or 3x 5 Gallons of Distiller's Yeast while the Cider Ferments, and have Bananas breaking down with Amylase Enzyme and Fermenting all together in another container. And I can use the 6 Gallon Carboys for Wine too, until I start making Beer, then I will use those for Beer.