I will be building a landscape wall around a corner of a house. Right now there is a wet-stone one that I will be replacing with a dry block wall. Does anyone have any tips or suggestions on how to start and get the blocks level and what I should use for a base etc. The wall at the tallest will be 2 feet. I was thinking about 3" of crushing stone. I tried searching on here and on the web for tips/instructions and couldn't find much.