Guess what came in today!?
Pic 1: the glass-holes overflow kit with 1/2" returns
Pic 2: mocked up hole locations
Pic 3: started drilling with template in place to cut an accurate groove
Pic 4: removed template once it was no longer needed
Pic 5: plumbers putty to build a dam around the hole to fill with water to keep cutting bit cool
Pic 6: the dam, any dam questions? Lol
Pic 7: all 3 holes cut
Pic 8: overflow box and bulkheads mocked up.
Finished product pic coming soon after I paint the back glass.