i hate that about online shopping, too. some places have good customer service, which makes a huge difference.
my trouser size is 28x30, and i find that an 11.75'' front rise and an 8'' leg opening are ideal.
oh boy, you don't want to go down that rabbit hole.
quick and dirty: use the long end of the zoom to avoid reflections as much as possible and hope there's enough light. for white balance, get one of those whibal keychains and take a test shot next to the artwork. it won't be perfect, but it'll be decent.
are they slim fit, or are they actually regular fit, just slimmer than what an orvis customer is used to?
norse projects aros heavy chino: they say it has a "classic high rise," but the measurements indicate a low rise.
levi's made and crafted high chinos. good grief, they call a regular rise "high". would have to get these tailored a bit as they are too wide. not sure about the color.