Best Way to Transport Beverages

What's the best way to transport bulk quantity beverages? (Water, tea, lemonade). Do you mix then transport? Or transport water then mix onsite? What do you mix or serve them in? I can't brew tea onsite, so last week I mixed in a 5-gallon bucket and transported. It's not the prettiest solution and I'm sure there's a much better option. The Cambro drink dispensers are a little out of my price range for the time being..

I'm new to the catering game, and even so it's still just a hobby. I've been cooking for several meetings (50ish ppl) for an organization I belong to, getting a feel for things, and practicing my timing and preparedness without the pressure of a paid gig by strangers.

I appreciate the help!

Well they were the sealed Cambro clear plastic buckets. Probably not meant for liquids, but they we're available and worked in a pinch.

I have these available to borrow, and it's what I used. They look nice, but they don't seal, so I just poured the water in them and mixed when I got onsite.
https://www.webstaurantstore.com/choice-3-gallon-black-slim-beverage-juice-dispenser/176BD3BK2.html

The Gatorade jugs are handy (I have a few of those available as well) but they drip all over the floor and they stand out like a sore thumb. Would work for a picnic, but not something classier.

Something like this might have to hold me over until I can afford something nicer. I guess the dispensers I linked above probably aren't a great option for catering unless the venue has a kitchen available onsite..
https://www.webstaurantstore.com/choice-6-gallon-white-round-beverage-dispenser/176RBD6WH.html