I was the DIY that took 29.5 hours to do the WP, timing chains, coolant, thermostat and valve cover seals on the 2009 Flex. I did clarify that there was extra time required within the 29.5 total that I used to plan the installation of the timing cover because I didn't want to smear the Ford sealant. A professional would have discharged the AC and moved the hoses out of the way and saved time. I was trying to be very clear on how long this job took me, I am above average in my DIY capability, have a good set of tools, and I'm a Mechanical Design Technologist BUT I AM NOT A PROFESSIONAL.