My wife and I were the lucky recipients of the 'Grand Prize' at ABCReefs (Syr) frag swap a couple of years ago. Got this sweet 65g set up! I had a little 28g, but we were just starting up. Got it drilled for the overflow, plumbed the tank, got some paint and painted the back with 3 coats of matte black, filled the tank and..... Oh Crap!!! The tank leaked! Dave and Dave at ABC tried heroically to seal the tank, but, alas, a new tank was ordered (free from Company), Dave drilled it again (free!), and I got another can of paint! Lost a month and a lot of self-induced aggravation
Lesson learned! And thanks to my LFS for bailing me out!