Even though you've already bought the carpet, you can still call technicians who sell carpet as well. Most technicians will work with the carpet whether they sold it or not. I would suggest talking to anybody you know who has had carpet work done recently. Get as many recommendations as you can so that you can talk to a lot of companies while deciding who to hire.
First, my thought on the granite is cold. My thought on your price is great! If you could remodel your kitchen for $3,500.00 please do so you will easily get that back in the sale of your home. "Reality" a remodeled kitchen with granite usually carries a much higher price, I heard people spend at least 25-50 thousand or more on a kitchen $3,500.00 for a kitchen remodel is a drop in the bucket go for it!!!!... more