What seems to be a fair price to install tile in a home?  I have a customer i work with that has a home he would like me to tile but as you can probably guess its not what I usually do for people. I am a hardscaper by trade and do patios driveways and the like but now it is winter and I have worked for this guy before and he trusts me but wants a qoute and I could use the money.  I do not want to do the job for free but am not looking to rob the guy either I have done tile at home and for my father but have never kept track of the time because I was not billing the jobs so I have little basis on which to formulate a price.  I will be using to of my guys to help so I really need to make a good guess as if I am wrong it could end up costing more than i make.  Any ideas?  the homeowner already has the concrete board down and has purchased the tile whick is natural stone not ceramic so that means a little more work I understand.  thanks for any help.