In my 2019 I think there are 4 x 110V AC breakers that are shared by the outlets around the trailer. Then you have the heavier circuits for the Air Conditioning, etc.. And also the 12V
There may be an outlet in the cabinet under the cooktop that the microwave is plugged into. Sometimes they stick outlets in the strangest places out of sight. Depending on what load the induction unit will pull, you may be able to plug into that. If you have an electrician doing the work, they will be able to tell you if a shared outlet will work or if you need a dedicated one.
Then you may be able to add a breaker (not sure on the space for more breakers) and run fresh wire between the cook top and the electrical panel, they are pretty close so that should be relatively straight forward.