I agree with Bmorgil, remove the front clip with the fenders. That will give you the best way to see exactly what you are doing. Save the standing on your head for other endeavors. Also, I agree with dropping the transmission and transfer case with the cross member as an assembly. The skid plate will give you options to secure the assembly to a transmission jack to prevent you getting hurt. (I'm a big fan of using short ratchet straps rather than the chains and hooks supplied with most transmission jacks.