I Blame CHIP FOOSE he's making me crazy

Roadster Shop has done some similar things. Are you using stock frame rails? If so I would be concerned but if you're using/building new rails, go for it. Not hard to do at all. I should have done something similar with my cross-member, but I'm NOT redoing it again. Doing that to get it low though doesn't seem to make sense to me. Is this for static display or ride height? If ride height, would seem to me your issue is going to be tire size/interference with inner fender and even top of the fender, as well as cross-member/k-frame or whatever you're using. I would argue that my build will be one of the lowest ride height Mopars around with stock fenders. I'm at 5" to the rocker with just enough clearance at the fender mount to get full tire/wheel travel. If you are buldging the tops of the fenders for the tires that's another thing altogether. What is your goal for height, ride or static?