Upload & Sell: Off
I think you're right about the gaps thing. If I went with the sensible route adding the 35f1.4 would probably negate the need for the 24-70 as I'd have the range covered with the 24, 35, 50 and 85 and those lenses are far more interesting.
That sounds nice. I love prime magic. I say you go for broke: 24L2, 35L, 50L, 85L2, 135L, 200L..... That would be living the dream