For the oil most are building a manifold that bolts on to where the oil sending unit attaches. You'll need to of course fit the oil sending unit to the new manifold. I can't help you on the water part because mine are air cooled.
New Ride -- 2015 Z06 2LZ (stock) -- Journal
Old Ride -- 2012 Camaro 2LT/RS (647 RWHP & 726 RWTQ) -- Build Thread