I have watched Youtube videos and I'm still confused. What is the easier of the solution? I am planning a 7'x7'x12" shelf layout and it will have a tight 9-3/4" curve to join the two 7' sections together. I want to make them all the same and universal. I'm thinking just going with the MT Bettendorf 1000. Any recommendations. I was wanting to go with the tru-scale but OY that is to tiny for me. This will be good enough. btw, does the Bettendorf 1000's come with metal wheels?