"Structural Engineering is the Art of molding materials we do not wholly understand into shapes we cannot precisely analyse, so as to withstand forces we cannot really assess, in such a way that the community at large has no reason to suspect the extent of our ignorance." - Dr. A. R. Dykes
Not to be off topic. But I love this quote. The truth is out. More metal and more passes..
The gusset idea should be OK (way I would have went) and Big Paulie's info sounds good as well. (tried and true he mentioned)