Thanks for the input everyone
So since the only problem was the tank was too "shallow" and the width was very "limited". So I decided on a new dimension:
40" X 20" X 20" = 70 gallon!!!!!!!
Thanks to Dave and Denny for helping me decide on the dimension by explaining stuffs for hours! And I have placed the order with concept
So now I am in the concept team too
Here's the details:
40"x20"x20"
starfire front (and possibly two side; can't remember what Dave said :P)
external overflow centered on back panel
2x returns
built on foam base
full acrylic on back panel
clear silicon
trim (since non polish)
eurobraced (not single glass)
I am excited