yeesh, must be a lot more complicated than I'm led to believe and at $100/hr...$2K + 1K for the 'fix' AND $300 for 'shop supplies', which probably won't include HST oil.
WT's line ... The Flat Rate Manual lists labor at 8.2 hours.
I assume that's the total repair..of remove/fix/reinstall which sounds right. Say 3hrs to remove and tear down, 1hr fix, 3 hrs reinstall, 1hr coffee breaks.
You have never worked at flat rate if you think it includes coffee breaks. Heck in the automotive world every quarter the labor flat time changes, and it usually goes down.