Therte are quite a few books with good inteior and detail references H. I've got a couple myself. But, having had a quick look at some of the pics you posted, looks like most is covered. It's probably easier to collect as much as possible, then request specific areas or detail you don't have.
The bombs were normally Medium Green or Olive Drab.
Interior colours can vary, depending on production batch, factory, and date of production, and the different compartments could be different finishes even on one aircraft!
In general, by the mid-production (early) batches of the 'G' model, much of the interior was left in bare metal, although some areas would be Interior Green, Zinc Chromate, Yellow Chromate etc. There was also areas which had sound-deadening padded cladding, and again, at least two different types could be found. You might be surprised to learn that there was also a fair amount of clear-varnished plywood knocking around inside! Many current restored B17G's are fairly accurate regarding the interior, but you can never be certain that any particular one is 100% accurate, due to either personal choice of the owner(s), restrictions on materials, aesthetics or just inaccuraies in general.
Again, decide on the specific bird you want to build, and gather info from there. Note that as the 'G' series progressed, there were major changes to the waist gun positions, the tail gun position, cheek guns and radio room gun hatch - so close study of the subject is essential!!