On the WLTD engine the Multilayer gasket does Block these waterway passages, its the way it was designed. Its nothing to worry about if the cooling system is in good condition .
some times manufactures change their mind over time what is best for a design that generally does not change. A good example i am aware of is the Hillman imp head and the tightning sequence of the Norton twin head
Great welding and quality repair. If you need inspiration check out this thread http://www.mig-welding.co.uk/forum/thre ... aro.74791/ on an imported Nissan Figaro. The guy is doing a great job despite finding rust everywhere.
PS it will take a while to read the whole thread.....
the sills are open inside along the full length from wheel arch to wheel arch, when i did mine mine i put in closure plates just inside the arches and one half way along, if they can stop a ship or submarine sinking itll help a bongo last a bit longer.