I believe that using a progressive press that eliminates a lot of possible errors as it is automatically run from station to station is safer to use than a single stage that involves charging and working with your ammo in blocks of fifty. The more ammo you run, the more prone you may be to errors in a single stage, so you may be far safer over your lifetime using a full progressive. I couldn't run 223 on a progressive, it wouldn't work for me. you are probably looking at 2-3 hours a week on single stage, depending on how quickly you work, maybe half that with a progressive. using a turret would cut a few minutes off of your single stage time use.
If i was in your situation, this is how I would work. I would load in bulk on weekends, 500 lots.
The way I work is I keep a huge stockpile of brass. I take a container of several hundred, and work it through stages.
Clean.
deprime/size.
expand.
using fifty round blocks, I then..
charge
load and crimp.
I always have huge quantities of loaded ammo on hand, because I load in huge blocks, and when I shoot, everything goes into a great big unsorted pile until I feel like cleaning it and sorting it. It's not as disorganized as it sounds. Right at this minute I'm doing bulk resizing on 9mm. almost a thousand, i guess, by how heavy it feels. about ten pounds. When I'm done, I will expand, then tumble lightly again. I use an rcbs hand primer, and only prime them as I need them, taking only a few minutes per block of fifty that I plan on loading.
Since you are not planning on shooting HUGE numbers of rounds, but steady and large numbers, this may be a more efficient way of working than a progressive would be. It works well for me.