Frame material Change

The original plan was to make the frame out of angle iron as it is easy to work with and I have a lot of MIG welding experience. Since then we have decided that getting into the machine shop to weld might be more of a hassle than it's worth and lumber is a bit cheaper. After making this decision we made a trip to Home Depot yesterday and bought two 12 ft length 2x4's. This wood should be a little easier to work with and I hope to get into the machine shop tomorrow to get it cut to length.