To remove the lower wishbone assembly on a Jaguar XJ-S, the first step involves the removal of the entire front suspension unit.
Oh, and that the engine rests on that, and will need supplemental support.

Shortcuts don't likely work any better on those than on a UniMoG! For example, the procedure for replacing the transmission on our 404 goes as follows:
1) disassemble entire truck
2) replace transmission
3) proceed visa versa (Mercedes manuals

when they say "proceed visa versa, except note" you KNOW you're in trouble

)
We didn't follow step one as fully as we should have in 2002 when we blew our transmission in Oregon (we left the bed of the truck on, as we were living in our camper at the time, the swap would have been easier with that removed too...):
http://www.volkswagenhaven.net/nwmf2002.htmlHence the "shortcuts" remark above.