1985 D150 "Mr. Curtis" race truck with a 2015 6.4

I decided to try and keep the original crossmember (relieved of the UCA mounts).
The LCA mounts would have to be relocated on the crossmember (or redesigned) to accept the '05 1500s LCAs and act as the front mounting point.
This way all i would have to do is finding a way to install the rear LCA mounting point which could be transferred over from the 1500.

Incidentally the frame rails (well, really thick square tube for the 1500) are the same height... but not much more.
I'll go hunting for some D150 frame rails, from the cab forward.
I need to box the frame in a few places and i need to do it in a fashion that will work with German regulations.