When I get a new cage, I like to build it and leave it in the room, empty, for a few days, and let the chin who is moving into it play in the empty cage during playtime for a couple of days. Then like on the third day, during playtime, I start moving her things over, and they usually get all excited to find their stuff being put into the new cage. Then you can usually just shut the door when you are done and they are fine, happily exploring.
If you have the time and patience, that is a really easy way to transition them.