first off, understand that I don't weld, a buddy of mine did.
it took about 1 1/2 hr per side to do the welding, and a hour or so to cut the old rockers off, I just came back in from painting them and that took longer than the rest of the process.
I/we welded the angle on first to be able to set the tubing where I wanted, then we/he welded the tube to the angle/body. Yes, there was a considerable amount of over head welding.