DGULL, From what I've read about the Microshift parts, they're good quality and the ratcheting FD lever should be compatible with any FD, like the older Campagnolo. The pull ratio for the RD is compatible with Shimano 7S-10S road, excepting 10S Tiagra, and 7S-9S mountain RDs. If I were considering another touring bike build, I would strongly consider Microshift.

In the olden days a 1/2 step + granny crank set worked to close up ratios on 5S and 6S touring bikes. I like to use a fairly close ratio rear cassette and a triple crank set to achieve the same thing. My triples are primarily used as doubles with a bail out granny. If you're planning an expedition level touring bike I suggest using a triple crank set.

Brad

PS If any of the data I read is incorrect, please correct.