Dunno. For me, forget about the thighs (though I don't have monster thighs), just get me cargo pants that will fit my waist tight enough and get over my nine inch (no that isn't a typo) larger hips while looking reasonable. Oh, and just to stir the pot a bit, make them with 36" inseams while still fitting my waist that could comfortably wear 30" pants.
Short of going to a tailor I'm not sure what to suggest, although I suppose that you could afford custom fit pants with what you save from not driving - and are healthier to boot.
Tor