@emergingsoul That made me laugh - thanks! Get a puppy indeed.
I went from Krell to Primaluna in the last few years and am mostly happy with it.
I chose the Primaluna over the ARC due to the massive PITA tax (Pain In The ASS) if a valve blows with the ARC gear. I do think the ARC 5 and above sound better than the Primaluna by a bit. (and then incrementally better the farther up you move)
I was happy with this until I heard the Spatial Raven. That is the best pre I have ever heard. Full stop. Unfortunately, those are North America only and cannot be run the EU without a step-up converter which I am not willing to add to my chain.
All of the above are good recommendations. You just have to choose which flavour you desire.
Add Don Sachs to your list if one ever comes up for sale - it is my understanding that this is the pre-cursor to the Spatial Raven, although I could be wrong on this. I am sure someone will be more than happy to correct me if I am.
Have fun with the search and I am happy for you that you are in the enviable position to choose what you like without a cost factor to be concerned with.
Cheers!