Great start! Youíve been through half the battle picking fish out and researching! In my many years of keeping angles and silver dollars in particular I have never had a problem with them together. But every fish is different!
the first setup sounds good on paper for sure though. You have more than enough space for the fish that youíve chosen which is good. A moderate bio load for a big tank is perfect, with the correct filtration itíll be spotless! As far as the dollars and the angles, you should be fine. If the angels want to get territorial than they have 117 gallons to choose from, and there wonít be loss of life over territorial debates. The dollars will school around and swim laps while the angles float around and act like the boss (which they are in this tank). The corys would occasionally school but sometimes they like to wander which is fine! As far as order, I would do the tetras first, so they can find hiding spots and settle, the corys then so that all the small fish have a chance to grab spots and settle down. Honestly, I would add the silver dollars then, as they arenít necessarily territorial but shy and need a good hiding spot. Lastly the angels go in not long after the dollars as they will assert dominance if they feel threatened and want territory. That way thereís way to many other fish and they have to deal with it as they school around the spot. So they canít pick on one for the most part. Lastly for peace of mind, this advice was given through my own personal experience and that of friends. Fish are unpredictable and things happen, but this is what I would do In this particular situation. If anyone else wants to chime in feel free, and please fact check me so I donít spread false info! (Some ideas will contradict as we have different experiences with different variables in the setup) Best of luck my friend and I hope I was of some help!