Hello Desperate Housewife - funny!
There are so many variables involved in adding a kitchen or any additions, that nobody could quote you a price without seeing your house and knowing what kind of kitchen, pantry etc you would want. If you would like a quote from a professional Contracter, please contact me and I can give you a recommendation.
I am not quite sure what you mean by "power room" - I have not heard that description before.
I look forward to hearing from you.
Lynne Hale, CRS, e-Pro, CIPS
Century 21 Hansen Realty Inc