Will our two rabbits like their new indoor cage/hutch?

They may well be stressed out by the change of scenery and being so close to each other. Rabbits don't cope well with change- they also do not cope well with traveling. If there is any way you can leave them home in their normal environment and have someone come by and take care of them, that would be better for them. If you do end up bringing them along, expect them to be scared and stressed. Put the cage in a room that's quiet and away from the main part of the house so they aren't bothered so much by people around them at all times (most indoor rabbits would rather be with the family where the action is, but they aren't used to it, so keep them in a quiet area). Give them bits of their favorite treats and try to encourage them to eat. If they go more than 12 hours without eating, you need to visit with your vet about what you should do. When rabbits don't eat, their digestive system shuts down, and their organs begin to fail- they aren't made to be able to fast for periods of time like many animals, and going without food is a serious problem.