Wow i'm really impressed ! for two bodies and 4 to 5 lenses (no longer than a 400 5.6), which pelican case is recommanded ?
Personally, I'd recommend Storm cases over the Peli cases (although Peli bought Storm, so it's the same company). The Peli latches are called 'knuckle busters' for a reason, the Storm latches are much easier (and quieter).
I think a Storm im2600 would work for you, Peli equivalent is the 1554. A Storm im2700 would give you room to grow. The im2620 or im2720 are taller, and allow white zooms (70-200/2.8, 100-400, 28-300) to stand on end - the Peli equivalent is the 1614 pictured above. If you want to stand the 400/5.6 upright you'd need the im2750 (Peli 1624).
be able to get your gear into a Storm im2500 (Peli 1514). Those are the largest hard cases approved for airline carryon, if you fly with your gear. That's why, in addition to the larger and smaller cases, I have an im2500. I have the one with the dividers, although when flying with gear I take those out, pack the gear in either the Flipside 300 or Flipside 400AW, and put that loaded backpack inside the im2500. That way, I have safe transport just in case I'm forced to check the gear, a locked case for hotel rooms, and an easy way to carry my gear around once I get to my destination.