I just started on the rack for my Suburban. Got all the tubes cut the length, most welding done, but couldn't find my holesaw bit to notch them. Maybe have it wrapped up this week. Excuse the mess, the F-250 is being blown apart. Tubes that need to be notched are just taped together after digging for my holesaw bit for an hour, I got frustrated and wanted to give myself a visual of the end result.
This is about 3 hours in and about $50 worth of 1" EMT. I've built two of these before and they've held up great and are plenty strong, yet still lightweight. I can hold this whole rack up as you see it balanced on my index finger. The photos are looking at it from the back, the front is longer at the bottom for light mounts and an angled wind screen to keep down on drag and noise. The mock-up photos don't show all of the upright supports, nor any of the bottom cross sills. I'll do a tech write up on the build process once it done.