I have probably already told this but, I just removed 50 ,4"x7' mirrows. I cleaned up the drywall and skimed coated the wall. Next day,light sand job,skimcoated entire wall. Next day,sand,prime and paint. I did 192 sq.ft. for pennys,except for my cost of labor. Total time involved,-maybe,,,,6hrs total.Remember to keep everything smooth.Also,I am experienced at this so this will probally go a little slower for you. You will find this easier than doing corners. P.S. deecee was right also. Ron J.