hmmm...
I originally bought a tank without any drilled holes. I brought it to a LFS, but the guy was cool and cautioned me against drilling at that point. It doesn't break too often, but there is a CHANCE of it happening. Then I'd be out of a tank - cause it would be my responsibility. What I did was swapped my original tank with the LFS reef-ready tank (AGA drilled in the factory) and then I paid the difference. got a good deal.
Now, I'm a little unsure of your situation and needs. If you drill the holes yourself or have the LFS do it, I'm not sure of how your piping would be...and how the Durso would fit into the equation. you'll need other help on this one.
You don't NEED to drill your tank...you could always have a hang-on overflow box. I never needed this, so I couldn't help you on where to go. I do know that I've read a lot of posts here and if you do a search, they could help you out on it. With these boxes, I'm sure you can implement the Durso standpipe (I'm sure I've seen pictures here).
I guess I'm just more familiar with my setup...the corner overflow.
but, here's durso's website...go to Durso STANDPIPE
http://www.rl180reef.com/frames.htm