$2000 doesn't buy a great bike... maybe a frame, but those Campy components don't come cheap!
I've had KEF 107.2s, they need a solid amp with good bass. I powered them with an Aragon 4004 Mk II, but they really would have done better with more power, and an amp that pushes a little more bass. I tried them with a McCormack DNA 1, while I liked the mids and highs, the bass was lacking. My brother took them from me and powers them with an older NAD with some serious mods, and they do OK, but I suspect they would really sing with the Krell or Pass amps as long as they had ~300+ watts to go on. I found these speakers somewhat low in bass and that is why I am recommending the amps I am
. Others will differ with me, but this is my personal experience.
Just my 0.02
As far as an amp to go with them, Id recommend either an Aragon 8008BB (easily under $2K), Palladiums if they are in your budget, or perhaps a Krell KSA 250s if you can get one for $2K, might run more though I would think these would do well with these Krells, Pass X250 as another option, you might find one for that.
As for the McCormacks, I really like the sound of them, especially in the mids and highs, but the bass is somewhat lacking, and these speakers will show that and in my opinion, they dont match well (I took my DNA 1 back the second day after trying it with these speakers!)