Build my own or settle for whats available?

[mike31154]

2" here or there makes no difference really, unless you're planning to fit it into a specific space and are therefore limited to custom measurements. Other than that, the dimensions are a personal preference, within limits, depending on what you plan to keep. Another thing to consider is that spare parts such as tank trim are much easier to source if you happen to break the center brace or something.

If budget is a concern, why not keep an eye on the selling forum for a good used tank? You might even find a custom tank there close to the dimensions you're interested in...and the price will be way better than new. You're not in a hurry, so it's to your advantage to wait for a good deal.