Here are the items you need to get started with my 2 gal jug method.
If you are ok with using Amazon then everything can be found there and shipped to your door. I included some links for those and get a few pennies as an affiliate (advertising). Otherwise you can find everything at grocery stores, walmart ($20 jugs!), or wine shops, overall probably cheaper.
Two Gallon Jug with Spigot: $40
Replacement Stainless Steel Spigot: $12
Bulk Black Tea: $15/lb
Bulk Green Tea: $10/lb
Coffee Filters: 250 for $9
Rubber Bands: 80 for $5
You have to find someone who has one to share.