As others have mentioned, the Soundsmith Paua Mk II is an excellent cart. It’s detailed and neutral but not boring or bright at all. I’ve had mine for about a year and it’s a keeper. New models are quite expensive but used one can be had for under $2k.
Harbeths are fantastic speakers but if someone who was listening to a lot of hard rock asked for a speaker recommendation I would not suggest Harbeth. They seem to thrive more in the vocals, jazz, folk realm and can sound a little muddy when too much Whole Lotta Love is thrown at them. Just my experience for whatever that’s worth.