Rough number of hours labour to remove and replace Q5 Diesel Engine

[5up]

Hi all, I have received an invoice for an engine replacement on my Q5 by a garage.
Car is 2.0 TDI quattro, auto. I supplied the engine (as asked) by the garage
Seems rather a long time ?

I just wanted to see what your take is on the labour below please :


Remove engine - 9.5 hours
Strip existing engine parts of engine - 4 hours
Fit existing parts to new engine - 5 hours
Fit new engine - 9 hours

27.5 hours

Any help is apreciated