I think you are making it more difficult in your head than it needs to be. There are hundreds of builds from this forum alone that you can follow.
A thread you might look in to: http://www.monsterfishkeepers.com/f...mpilation-of-DIY-plywood-tanks-(Load-Warning)
What I really need is someone to tell me HOW to build one. I dont know how.
Thanks for the link...lots of good builds on there. Its not that I couldnt do it, I think I could make somethin up, I am just the kinda guy that would rather follow someone elses proven footsteps as to construction. Like plans. Tell me where to cut, and thats what youll get.