Recommendations for a new integrated amp for Vandersteen 3a speakers

I acquired some Vandersteen 3a speakers a few months back to replace my Theil CS1s and would like to update my system to accommodate them. The recommended power range from the mfg is 100-200 wpc.
I have been using my old Adcom GFP-555II preamp and NAD 2100 amp and would like to upgrade with a new or used integrated amp to replace them. I have been considering:
Wyred 4 Sound sti-1000 or sti-500
Musical Fidelity M6i
Rogue Audio Cronus Magnum or Pharaoh
Odyssey Stratos (keep the preamp)
Vincent Audio SV-237
Unison Unico
Peachtree Nova 220 se
My budget is $1500 for this upgrade. 
Please help me narrow the list or add some other options to consider to upgrade the system!