Tank Build - Bad News

[philg3]

Got some bad news from the glass shop working on my aquarium.

I dont have any pics, so paint will have to do while im at work.

While making the notch cut for an external overflow box, the glass cracked and went lower than the 3/4" that i had planned. Now it almost steps down another 3/4" which makes the overflow 1.5" deep and not uniform in shape, ie:

Notch Overflow Fail.jpg

What are your guys thoughts?

Silicone something along the overflow edge raise the bottom part to where i had planned?

What if i added a piece of black acrylic (similar to what standard internal overflows are usually made of) the correct shape and dimensions and just siliconed it to cover the entire back wall? do the same thing with a thin peice of glass?

The plan was to drill two 3/4" holes for the return in the back panel as well as add eurobracing to the top.

The overflow would probably function fine as is, but the water level would be lower than i wanted and every time i looked at it i would know its wrong, not to mention some loss of surface skimming.

What do you guys think of these solutions, and does anyone have any better ideas?