1) 24-70mm f/2.8L II -- tack sharp, rivals primes, also good in low light with high iso 5D Mark III
2) 135mm f/2.0L -- great bokeh, fast, light
3) 85mm f/1.8 -- cheap, light, fast, unobtrusive, decent lens
3) good tripod and ballhead
+1 1&2 are two of Canons best lenses
You could also substitute the 50 1.4 for the 85 1.8 if you wanted a wider low light lens.
Bodies: 5DSr, 6D, EOS-M
Lenses: 35mm f/2.0 IS, 50mm STM, 300mm f/2.8L II IS, 16-35mm f/4L IS, 24-70mm f/4L IS,24-105mm f/4L IS MkI, 70-200mm f/2.8LIS II 600EX-RT (x3), 1.4xIII and 2xIII extenders