are you looking for a glass sump??drilled where?? i happen to have a 29g (i think, the one that is 30"L) drilled on one of the corners...lmk if you want, i'll sell it to you for $25, i want one without a hole. btw i drilled the hole myself. i;ll send you a pic if interested.
Might have something that will work for you.
It was part of a used tank setup that I had bought. DIY interesting and apparently works for the last two owners.
Larger than 30g and has a center area for refugium. I'll post some pics tonight when I get home.
Here's some pics.
It's an amiracle W/D sump converted with an additional DIY section glued and drilled.
Measures 36.75"L x 14"W x 13.75"H
It was a sump that reefoman had sold with his tank a while back and then I ended up buying the setup third hand. I didn't use the sump cause I have the tank connected to my main tank.
There didn't seem like there were problems when reefoman DIY'd it for his use and when the second owner had it set up before I bought the tank.
In the last pic, the second owner used the middle compartment for her ASM skimmer but I think reefoman had this intended for a fuge due to the height of the water level in that compartment. There is a 1" bulkhead on the side of the sump.