Appliance hook ups are generally kitchen stoves and clothes dryers.
Be aware that most stoves need 30″ from the stove top to the bottom of the cupboard. We can cheat a little bit if you install cement or Hardy board between the fan and the cupboards. There is also a side safety measurement requirement. Please check the manual for exact numbers. You need a kitchen fan vented to the outside.
Past clients tell me that the best stoves are dual fuel, (electric convection oven with gas top).
Clothes dryers need to be vented directly outside. I have had clients wanting to connect to existing vents that weave into the attic and exit through the soffit (not allowed).
The basic charge is $350 for a 15′ gas line with a shut off.