if you don't mind the look of the $10 ball valves, you can save a cool $100 on each one. You need a valve for every switching possibility.
I wanted to have 3/4" right up to my bathroom, and valves galore hidden in big niches like cupboards, but in the end I gave in to all that social pressure ... which works when the plumbing store people stare at your wife a long time after you tell them what you are looking for ... In the end, I paid the big price for the chrome plated brass shower diverter valves and the fancy Thermostatic valve, and the Roman tub filler set, and you name it.
To fill buckets you want 3/4" all the way including the valve and mixer.
Knowing what I know now, I'd take utility ballcock valves ($10) and put them in a deep pocket cubbyhole niche where no-one could see them but anyone could put their hand in and turn them on. People just can't get used to the idea that a $10 handle is a good alternative. Leaves more money in your investment account.