I am trying to estimate a re-stain job in a kitchen. There is approx. 303 sq feet to strip, sand, stain, and varnish. I am used to estimating jobs for painting. I am worried I am not estimating this right. Does someone have a good formula to do this. It is a job in Scottsdale Arizona and I am thinking it would cost around $14 a square foot (including materials & labor) but I am worried it will take longer than I think. Any help is much appreciated.