Don't overbuild if its going to prevent you from adding a large wide sump.. I did this on my 120 10 years ago and I could only fit a 12" wide sump because of the middle support. My previous stand was particle board and I had to replace it with a OLD dresser (picture in the back) since the tank was unleveled by 1/2" since the particle board warped, so in hindsight I should have planned this out better when upgrading to a 120gallon but I was paranoid it being my first major project. I will say I got handy in all aspects after building this with all the wrong equipment..