I don't know anything about the Macs, just wanted to give you another option to look at in the same vein.
The Vincent K35 doesn't have the meters but is still reminiscent to me. The reviews were good until they tried to reproduce bass for loud rock music. Which doesn't apply to you.
https://hifiheaven.net/shop/Vincent-K-35-Silver-Tube-Integrated-Amplifier-Used
The other is the even nicer Rita 880s that maybe ticks all of your boxes.
I actually did buy this one a couple months ago, but it is a heavy sucker (over 100 pounds) and got damaged in shipping so I never got to hear it.
https://www.dagogo.com/grant-fidelity-reference-system-review/
The Vincent K35 doesn't have the meters but is still reminiscent to me. The reviews were good until they tried to reproduce bass for loud rock music. Which doesn't apply to you.
https://hifiheaven.net/shop/Vincent-K-35-Silver-Tube-Integrated-Amplifier-Used
The other is the even nicer Rita 880s that maybe ticks all of your boxes.
I actually did buy this one a couple months ago, but it is a heavy sucker (over 100 pounds) and got damaged in shipping so I never got to hear it.
https://www.dagogo.com/grant-fidelity-reference-system-review/