Uh oh, sooner or later you may regret buying the Krell. Everything you and others were stating, regarding how timelessly good Mark Levinson gear is, I believe is true.
My only personal ML excellent experience is with a ML 326S preamp but I don't think I could be more impressed or pleased with its performance in my system. I don't recall reading such exemplary praise being bestowed upon older Krell gear but maybe there is some and I just missed it.
Best wishes,
Tim