Here is the modified nozzle. Initially I started with both ends sharp but found that it fit too well and I couldn't see around it to the weld puddle, so I shortened one leg so that it obstructed the view less.
This could have been completely avoided by making the straight portion of the tongue flush or nearly so with the A-Frame, it would have been easier to weld, and I would have only had to make one large gusset instead of the two small ones. This is what I should have done, but not being an experianced fabricator, didn't.