I was in the exact same position you were two years ago. I ended up purchasing a pair of MC 611s and C2700. I auditioned the MC 462 with the C2700, but the 611s were slightly better. In hindsight, I wish I had purchased the MC 462 and C12000. I love the McIntosh sound, looks, performance, and brand, and I thought this would be my endgame system.
A big, however, and I know you don't want to hear this, but I just auditioned the new Soulution 331 integrated. Its retail price is equal to the total of the MC 611 and C12000. I will soon be moving away from my beloved MAC system. To put this into perspective, I have roughly $30K retail of cabling/conditioning feeding my MACs. My current system was shamed by how the Soulution 331 performed. I still can't unhear what that integrated did with a measly just over 100-watt specification.
I wish someone had given me this advice before purchasing my system. It would have saved me a bunch of $$ in the long run.
Best of luck on your journey!