Hey Ninja - awesome purchase! you will love the tank. I'm not sure what plastic edges you are referring too? Are you referring to the Eurobrace that glass that goes all around the top of the tank to brace it?
The plumbing was just all from experience of prior builds that I have done, there is definitely lots of tricks and tips and once you get to that part feel free to reach out for any questions you may have. Definitely dry fit all your plumbing pieces. Add me on Instagram if you use that as I will respond much faster on instant messages on there, or you can just put replies here on the build thread and i'll get to you as fast as I can.
https://www.instagram.com/bayarea_reef
Thanks for the follow!
Yup, the eurobrace. Didn't know that was glass. Thought it was just part of the tank lid. I guess I am screwed now with my RMS mount.