I own a granite slab yard and we do the fabricating and installation as well. I would be happy to give her a qoute. Our website is Rockyourhome.com.
In regards to Ikea cabinets… we have a 10 year warranty on our installation on standard cabinets but only a year on Ikea stuff. All the cabs I have seen sit on plastic adjustable legs rather than boxes, that is why we do not warranty as long. For solid surface installers they are a pain in the ass and in my opinion not as stable as standard cabinets.
Do your research on the various types of tops, not all stone tops are granite and not all are suitable for kitchen counters. If you decide on granite insist on seeing what the seams look like, they should be almost invisible and completely smooth to the touch when finished. Find out if you can pre-approve layouts and seams ect. Make sure you get the slabs you choose. My advise is to take pics of the slabs.