pacenti p2 lugs, (next to the nuovo richie), and lewellyn are designed for this and as mentioned by A Stewart. these guys are very helpful and courteous
http://www.framebuilding.com/NEWPARTSPAGES/lugs.htm . Older style,cheaper pressed lugs tend to be a lot thicker and longer leaving some room for innovation although they can be made of softer steel so you cant fool with it quite as much