I actually have 4 different colors in my home.
Kitchen, Kitchen Island, Bar Area = Statuario Maximus 5031 with eased mitered drop edge (edge is more expensive but looks better with the movement in this product and not showing a typical laminated seam)
Master Bathroom, Master Closet Island, & Bath 2 = Bianco Drift 6131 with eased laminated edge
Powder & Bath 3 = Nougat 6600 with eased laminated edge
Utility Room = Concrete 2003 with eased laminated edge
Your allowance does slightly confuse me as $10/foot range is a big range and how do you know your exact budget. For example, typical kitchen is probably 85-110sqft of material. If the cost is $60 then that is about $1000 less than if it was $70. Throw in the other bathrooms, utility, etc and it is probably closer to $2000. Do you get credit if it is on lower end or under?
I don't like getting to involved in other peoples projects when it comes to specific costs as most builder's work completely different from me. I do about 40-50 different allowances that are all dollar for dollar figures and reconcile each allowance with actual costs (no mark-ups or fake costs) so that clients know the actual costs and know exactly where all the money is going for the finishes on the home. I don't want to make it difficult for your contractor as i have been in the business long enough that there is a decent chance i know the person (or they know me) and adding stress to their already stressful job isn't cool. That being said, all the above listed should easily be at or under your allowance range and I pay my fabricator at the very high end of fabrication range because he does some awesome work.