1 - 2 horas
I learned that YLOD is fixable and ifixit is offering a kit and a general guide on how to go about the repair.
The repair went well. I took my time I dis-assembled my ps3 weeks before the kit arrived. So I have time to really clean key areas needed to be cleaned. I also took some pictures of key areas I think I might have problem putting back specially the odd screws. Since I have enough time, I managed to do a mock of assemblying the ps3 together to see if I could remember and/or do it with the guide just read it backward. My ps3 now works perfectly, played long hours still operates very quietly. The heat is being managed properly since the vents and fan are clean.
Give yourself enough time to absorb what you are doing. It's worth the cost of the kit. The kit is very high quality tools. To have it handy around the house is neat and cool.