Shimano now has cable disk brakes that are compatible with road levers.
According to Sheldon Brown MTB front derailleurs will not index properly with road shifters.
In that case you would need to change the front der. to a road front der.
The rear der. won't be any problem.
The Dew has v-brakes which aren't compatible with road levers.
The best thing to do about that is to replace them with cantilever brakes.