Learning generally boils down to "Repetition or the avoidance of pain", some people learn by doing, some by watching and some just have to pee on the electric fence.
Whether you think that you can, or that you can't, you are usually right. Henry Ford
don't be afraid to ask question & definitely run the numbers through the pit calc & builder calcs at the top of the page. Can't wait to see your progress, I'm sure that tank will make a sweet unit.