I found a plumber (highly recommended, long time in area) to do the outside plumbing shown here, done in a week or so, at my dad's house. (After he does his work, I'll replace the irrigation sprinkler valves.)
A regulator will also be installed to reduce the current 115 psi water pressure.
I understand the differences/capabilities/durability of both types of valves. At least I think I know enough.
Any comments on which type valve you'd prefer in each situation?