Thank you for the input all, and especially pacu mom for the details. I'm definitely gonna check each of those places out. In the past, I had contacted a custom tank place online, somewhere in the east coast, and the cost was 1/2 the price of my LFS. I forgot which place that was.
I'm thinking to go 10 or 12 long. The height and width should be big enough to accommodate me to go inside for maintenance (like to sometimes dig up plants and move rocks, driftwood, hiding tunnels, etc). Otherwise, I need to figure out a height and width which would allow my extended arm and extension tool to reach to the bottom, without going inside the tank. I have pretty long arms, but do you think with a long gripper, etc and a step ladder I can reach to the gravel on a 36" high tank? 42" high? or should I keep it bare bones to avoid the problem of reaching the bottom?
I'm also thinking that if I keep the back away from the wall in order to allow a walkway behind the tank, I can more easily access a wider tank from also the back, without going inside it, for maintenance from the back. I'm also thinking of having a short or low stand to make things easier. These are some things I need to figure out before i order tanks. How do you guys address these challenges? Thanks