I just bought a 2007 Jamis Nova frame to build into a light touring/commuter bike. I want to build this rig using the touring concepts of using components that are fairly rugged, reliable, and easy to service or repair wherever one may roam alone. On such rigs, one would not find "brifters", i.e., dual control levers. Using that concept as a guide, friction shifters would be preferred over index shifters. Cantilever brakes would be preferred over disc brakes. And fenders are preferred over staying home.
Question #1: I am thinking of using a 9-speed MTB cassette and a MTB triple chainring. With these components, do I also need to limit my choices to MTB derailleurs front and rear?
Question #2: Other than trial & error, before ordering, how does one determine the proper length for the axle of the bottom bracket such that the chainline is correct when mixing road frames & MTB components?
Thanks for any help.