I suspect the 34 would be a little bit small for my comfort, but only a little bit, for loaded touring. I've got big rings on the order of 44-48, but those see a lot more use unloaded (joyriding).
If, after you try that combination, you want a bit higher gearing, you might consider changing the big ring. Easy (just use thread locker) and fairly inexpensive -- assuming you can source the size you want with the correct BCD.