Try using a different vendor…Mid-America is very expensive. I used Chirco (Tucson, AZ) and http://www.cip1.com
I bought my adjustable beam from CIP1. You will not have ride height adjustment problems with the adjustable beam. If I remember correctly, mine was just about centered on the adjustment after the leaves were removed.
Also, use the stock style grease seals on the beam and paint it with some good paint before you start to assemble it.