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: 5D3, 6D, EOS-M
EF Lenses: 35mm f/2.0 IS, 100mm f/2.8L IS Macro, 135mm f/2.0L, 16-35mm f/4L IS, 24-70mm f/2.8L II, 70-200mm f/2.8L IS II; EF-M Lenses: 22 f/2, 18-55; ST-E3-RT, 600EX-RT (x3)