Second hand comment here. Re-building a bike takes some time, so it is indeed suited to bike tours and other journeys where you want your "real bike" with you. Another interesting option would be to keep your bike as is and get a Bike Friday or a Brompton.

Bike Fridays are quickly foldable in a pack that's easy to carry on planes... or inside the office. Not as good a ride as your traditional bike, but some people tour on them, so...

Bromptons use smaller wheels -- a bit too small for a comfortable tour -- and are truly foldable to the point you will sneak in the bus.

Regards,