overflow box

[NYCTURBO]

Im planning on drilling my non reef ready 90 gallon oceanic tank for a over flow in the back I don't know if the bottom is tempered but I am looking for suggestions for the best overflow on the market I was looking at 2 so far glass holes/ghost overflow boxes. I also want to use the trigger system ruby red 36 duel overflow sump rated for a bigger tank for future upgrade. any suggestions will help with the build thanks.