Don't know details about how much you can lift the transmission. That's what the guy that posted the pictures of the IRO slim crossmember said he did.
Of course when building the crossmember I might get away with making it flatter, so there's no need to lift the transmission.
As for clocking, because of the way the transfer case adapter is built you can't re-drill it like on the AW4.
I'll open a topic for all discussions AFTER I build my hydraulic press and press brake. I really don't want to rely on somebody else for bending this