Brake cleaner and a scotch brite pad works just fine and you probably have it. Don't get carried away with the gasket sealant barrage, it's not complicated.
You don't need any sealant on the intake manifold gasket especially the green Reinz.
One side on the cam cover, ultra grey is fine
on things where there is no gasket like the gearbox halves you cannot beat
Permatex 51813 Anaerobic Gasket Maker, 50 ml Tube. It also works on things like the front cover gaskets where you can easily apply a very thin coating to both sides by massaging it into the gasket between your thumb and fore finger.
Stop and think about your comments on what you've gone through scraping gaskets and do you really want to go through that again? Also less is more in this case, it doesn't need to squish out the sides into unsightly globs. I like the idea of the thread, never heard that before, thanks Robert.
The passenger seat is 15 miles an hour faster than the drivers seat.
2017 Giulia Q4
74 GTV restored daily driver
71 Berlina in 2L restored driver
the ones that got away:
1959 750 series Giulietta Spider Veloce
1962 Giulietta Spider normale
1965 Giulia Sprint normale