You're on the right track.
As for the primers: It really matters little, unless you have race revolvers with very light trigger pulls. Some primers need more striking force to ignite than others. Generally, CCI are the hardest to ignite, and Federal's are the easiest. Opinions may very a little there. If your revolvers have factory triggers, then the whole subject of ease of ignition is moot. They'll all go off.
I have a revolver (Smith 67) with a mild trigger job and it'll ignite every primer, except for about 0.5% of the CCI its firing pin strikes. So I use Winchester primers for my 38 Special ammo (which is what I load the most of). Otherwise, everything else gets CCI's - because that's all I ever used since I started loading in 1984, and they have never let me down.
At any rate, given your application, I don't know that there's much need to give your primer selection a lot of thought. I'd recommend a major brand: CCI, Winchester, Federal, or Remington. Don't overthink it. And in your low-pressure application, you could even switch between brands without regard to a new load work up.
As for the wadcutters: In your velocity / pressure range, I'd recommend any national brand swaged bullet - Hornady, Speer, Remington, etc. They're all going to go nice n straight for ya.
Myself, I prefer a double-ended wadcutter (DEWC) profile. The lack of a hollow base make them a little more versatile. And I see no loss in accuracy whatsoever. But that's just personal preference.
Your choice of W231 is perfect, btw. Can't get a better propellant for your application. (Bullseye would get honorable mention here.)
Take your time.
Think, then act.
Check your work.
Check your work.
Check your work.
Load safe.
Have fun.
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