Cali_PH is right in guessing that F-Stop bags should feature in your search, and Dave-NYC is right there with the specifics. All his comments are accurate and relevant. Having a Loka myself, which is their middle sized rucksack, gives me plenty of confidence in recommending the brand to you for the use you've described. The quality is absolutely top-notch (yes, you do get what you pay for; the corollary being that you do have to pay for the best), and although you can strip out the camera insert section and use it as a regular back-woods or mountain daysack (at which it excels), it's simply superb for carrying around a fairly comprehensive selection of FF 35mm kit including tripod, plus the stuff you need to stay alive away from civilization, and then making all the weight disappear when you wear it. They make both bigger and smaller bags than the Loka, according to your needs (you may find the Satori is too big for you, though, capacity-wise), but whichever bag you go for, the real benefit is that the camera carrying inserts are almost infinitely customizeable within the limits of the size of the bag. They have ten different sized photo gear inserts, many of which you can double up for more capacity. I don't think you'll have any problem whatsoever finding a combination that will fulfill your needs handsomely. The Loka frame fits me very well - I'm 6' (1.82m) and fairly broad. The green color option is also highly camouflageable, if that's of any relevance. May I suggest that you get out a tape and measure what you want to carry before deciding on anything?
After a lot of research, I chose this brand/model over the Clik Elite Contrejour (not quite as well thought out, tough or as flexible, but a very close second); Lowepro Rover Pro (quality and robustness issues and the frame/harness is more suited to a smaller/shorter back); and Gura Gear/Kata/Think Tank/Lowepro/Tamrac/Tenba variations, all of which were either too 'city/airport' oriented, or insufficiently designed for back-woods trips.
I feel qualified to recommend F-Stop. I have had way too many other bags over the years, ranging from shoulder bags, daysacks and carry-on bags for personal and travel photo trips, all bought in the hope that they would be 'the answer', and a mass of plastic boxes (mostly Pelican) for work use. At the end of the day, the very best bag I've ever had is a canvas Billingham 335 which has seen every continent, climate and several war zones since I bought it back in 1979 and still goes strong having never allowed a single bit of kit to get damaged. It's not the answer for you, here, but I think F-Stop might well be.
Hope this influences you and helps in your search.