Nice to see there is some variation here. I have also built various "travel" kits depending on where or how long I'm traveling. But if time and space isn't (big) restriction, this is what comes along (also includes my fiancees stuff)
white Q+01
black Q+02 and PK-Q adapter
2x K-5 (one with D-BG4)
Sigma 10mm/2.8 Fisheye
Sigma 10-20mm/4-5.6
DA*16-50mm/2.8
DA18-135WR
DA35mm/2.4
Sigma 50-150mm/2.8
DA55-300
DFA 100mm/2.8 WR macro
A*300mm/4
And my FF kit (all are K-mount so can be also used on Pentax DSLR; fits in lowepro 300AW bag):
Canon 5D
Vivitar 28mm/2 (PKA)
Samyang 35mm/1.4
SMC-A 50mm/1.4
Samyang 85mm/1.4
Tokina 90mm/2.5 AT-X macro
SMC-K 135mm/2.5
In addition there will be
Manfrotto 190MF3 Tripod + 498RC2 Ball Head
Pano-MAXX Panorama Head
Timer remote controller
67mm and 77mm circular polarizers
Lots of batteries, memory cards, cleaning clothes, lens pens etc.
And maybe laptop (fits in Urban Disguise 60)
So it will be one camera backbag (lowepro 300AW), one big shoulder bag (ThinkTank Urban Disguise 60), two medium sized shoulder bags (Lowepro Nova 180AW) and maybe one small sized shoulder bag (Lowepro 140AW). Most likely I would not use everything but what would be more irritating than notice the lens you would need/want to use RIGHT NOW is left home! The day is ruined right away