If you really want to take a long way, but with the most monorail time.
Monorail to TTC, take monorail to EPCOT, walk thru EPCOT to IG and then take the Friendship boat to DHS. Give yourself a lot of time, 1 1/2 to 2 hours. The worst part will be the walk thru EPCOT, otherwise it's a nice trip.