You'll need bungs welded on Luc. You don't need to touch the water pipe in the stock set up.
Frontline Fabrication is making new upper water necks for AN hoses so you don't have to weld to the stock one (Which is a pain). They are also making my water pump block off and custom thermostat housing; water pipe will be deleted.

Since the EWP has a controller I'm doing away with the thermostat.