I guess you have determined that you need a 74 BCD for you small chainring. Your local bike shop can get these for you for $20, about what you pay online unless you watch ebay. I did not have good results using a Sugino 26T ring on a Shimano triple. I had better results with a Salsa ring. I read somewhere that Sugino uses a slightly different spacing. It worked fine with friction shifting but not with indexed which is what you have.