Great idea, but only caution is to know what your doing welding or get a pro. There can be a lot of stress from things bouncing around. Camping buddy did that, pulled in one night and noticed the bikes were not there - his welds gave out.
2011 JKU Sahara, Sahara Tan, Leather, 3.73, Auto, Hard/Soft Top, SpiderWebShade, Dead Pedal
Coming soon: 2013 Rubi 10a Wheels, New Tires