40 minutes - 1 hour
So the problem was not even the fan, it was the inverter, SO while changing the inverter i thought it would be a good idea to clean out the dust in the fan and under the board. Turns out an air compressor at max speed will destroy a macbook fan, so while i was fixing one thing, i broke another, So i ordered the fan from you guys.
The repair it's self was fairly easy, but for some reason (and im not sure why) when i completed the repair, my macbook did not turn on, like at alll! confused about this, i decided to look things up online, turns out (my guess) the ribbon to my top case was pulled or something, so my topcase wouldn't work, BUTTTT, Turns out.....my macbook was able to get a FREE top case replacement from apple due to a crack from the screen hitting the top case, so apple fixed my problem for free, and now my macbook is like it was day one, All works perfectly!
Follow the directions to the dot. Dont do anything else that the directions don't tell you to do and you should have no problem.