Thanks again for the help! I did the job Saturday morning and the customer was very happy. As you all suggested, I cut the angles with a miter saw, notched the inside part, assembled it all in place, then caulked it all real well. I used screws since I didn't want to spring for a rivet gun. The customer is going to paint it all to match the house & other gutters. Turned out great. Again, thanks for the advice!!